First commit in TRUNK since branching S2_5: 22813
Last commit in TRUNK before branching S2_6: 27473

Last commit in TRUNK checked: 26100

See also:
doc/README.packaging,
doc/README.AI_modules ChangeLog of AI callback interface,
http://freeciv.wikia.com/wiki/How_to_update_a_ruleset_from_2.5_to_2.6,
http://freeciv.wikia.com/wiki/How_to_update_a_tileset_from_2.5_to_2.6,
http://freeciv.wikia.com/wiki/How_to_update_a_lua_script_from_2.5_to_2.6, and
http://freeciv.wikia.com/wiki/Events_Reference_Manual for anything marked "2.6"
http://forum.freeciv.org/f/viewtopic.php?f=11&t=122

New localizations not listed. They can be checked by comparing lists of localizations
between branches.
Nation changes not listed.

Need to be rechecked (missing ticket number or similar problem)
r25047 / ??

Changes currently in 2.6, but considered to be reverted
r24844 / bug #21999

Changes made before 2.5, but reverted from 2.5, so appear new in 2.6
- Network packet size 16bits
r20420 / patch #2789
r21851 / bug #20111
r22157 / patch #3596
r22421 / bug #19943
r23785 / bug #21301

Also in S2_5 (not a change relative to 2.5):
r22820 / patch #3890
r22822 / bug #19846
r22827 / patch #3891
r22831 / patch #3893
r22836 / patch #3895
r22841 / bug #20787
r22843 / patch #3895
r22846 / bug #20786
r22851 / bug #20785
r22855 / patch #3896
r22859 / patch #3892
r22862 / bug #20788
r22865 / patch #3902
r22869 / patch #3909
r22873 / patch #3910
r22876 / patch #3856 (1)
r22879 / patch #3913
r22883 / bug #20776
r22885 / bug #20777
r22889 / patch #3904
r22893 / bug #20838
r22896 / patch #3837
r22900 / patch #3839
r22902 / bug #20837
r22906 / patch #3886
r22907 / bug #20713
r22910 / patch #3928
r22911 / patch #3835
r22915 / bug #20847
r22919 / bug #20778 (1)
r22922 / bug #20778 (2)
r22926 / patch #3921
r22928 / patch #3550
r22933 / patch #3932
r22934 / bug #20868
r22940 / patch #3938
r22942 / patch #3550
r22945 / patch #3929
r22949 / bug #20901
r22951 / bug #20902
r22955 / bug #20079
r22958 / bug #20903
r22962 / bug #20905
r22968 / patch #3944
r22970 / patch #3946
r22979 / patch #3947
r22984 / patch #3956
r22989 / patch #3940
r22994 / bug #20835
r22999 / bug #20932
r23004 / patch #3963
r23006 / patch #3955
r23008 / patch #3960
r23012 / patch #3964
r23014 / patch #3962
r23017 / patch #3966
r23024 / patch #3958
r23028 / bug #20950
r23034 / bug #20856
r23038 / bug #20957
r23041 / patch #3992
r23044 / bug #20952
r23047 / patch #3996
r23050 / bug #20567
r23053 / patch #3969
r23059 / patch #4007
r23060 / bug #20971
r23065 / patch #3990
r23068 / bug #20973
r23072 / patch #4016
r23075 / patch #4006
r23077 / bug #20977
r23086 / patch #3856 (2)
r23089 / patch #4008
r23091 / patch #4023
r23093 / patch #4012
r23100 / patch #4026
r23102 / patch #4001
r23105 / bug #20976
r23112 / bug #20946
r23115 / patch #4039
r23123 / patch #4040
r23130 / patch #4044
r23132 / patch #4013
r23144 / bug #20998
r23148 / patch #4058
r23156 / patch #4059
r23162 / bug #20626
r23166 / patch #4069
r23171 / patch #4071
r23173 / patch #4074
r23176 / patch #4075
r23178 / patch #4076
r23190 / patch #3937
r23199 / patch #4082
r23211 / patch #4089
r23213 / patch #4093
r23220 / bug #21044
r23222 / bug #21019
r23225 / bug #21035
r23231 / bug #21058
r23237 / patch #4095
r23239 / bug #21040
r23241 / patch #4099
r23251 / patch #4123
r23258 / bug #21059
r23266 / patch #4105
r23268 / patch #4124
r23272 / patch #4067
r23276 / patch #4111
r23279 / patch #4129
r23282 / patch #4135
r23287 / patch #4132
r23290 / patch #4116
r23292 / bug #21095
r23296 / bug #20989
r23298 / patch #4113
r23301 / bug #21064
r23303 / patch #4133
r23305 / bug #21112
r23306 / patch #4115
r23309 / patch #4145
r23314 / patch #4152
r23316 / patch #4117
r23323 / patch #4114
r23326 / patch #3991
r23328 / bug #19874
r23330 / patch #4119
r23333 / patch #4158
r23341 / bug #21120
r23343 / bug #21092
r23349 / patch #4118
r23351 / bug #21121
r23354 / patch #4159
r23357 / patch #4112
r23359 / patch #4160
r23373 / patch #3719
r23374 / -
r23375 / bug #21015
r23376 / bug #21068
r23377 / bug #20770
r23388 / patch #4176
r23391 / patch #4134
r23394 / patch #4168
r23398 / bug #21099
r23401 / bug #21086
r23402 / bug #21063
r23409 / patch #4064
r23418 / bug #20978
r23422 / patch #4181
r23423 / patch #4173
r23426 / bug #21023
r23431 / patch #4092
r23437 / patch #4174
r23442 / bug #21141
r23447 / patch #4187
r23454 / patch #4189
r23456 / bug #19542
r23462 / patch #4192 (1)
r23464 / patch #4192 (2)
r23466 / bug #20576
r23470 / bug #21144
r23474 / patch #4205
r23476 / patch #4196
r23479 / bug #21152
r23481 / bug #21147
r23487 / bug #21154
r23490 / bug #21153
r23495 / patch #4206
r23499 / patch #4213
r23502 / patch #4218
r23504 / patch #4219
r23509 / patch #4223
r23513 / bug #21022
r23516 / bug #21166
r23518 / patch #4226
r23521 / bug #19836
r23528 / bug #21167
r23530 / patch #3796
r23532 / bug #21174
r23536 / patch #4230
r23541 / bug #21113
r23542 / patch #4143
r23548 / bug #21179
r23551 / patch #4072
r23554 / bug #21172
r23557 / patch #4014
r23560 / patch #4239
r23570 / patch #4245
r23575 / patch #4003
r23583 / patch #4255
r23589 / patch #4257
r23591 / bug #21192
r23595 / patch #4088
r23597 / bug #21200
r23602 / bug #21199
r23604 / patch #4244
r23606 / bug #21202
r23611 / patch #4262
r23613 / bug #21206
r23614 / bug #21207
r23626 / bug #21216
r23630 / bug #21217
r23634 / patch #4267
r23638 / bug #21219
r23642 / bug #21231
r23646 / bug #21096
r23649 / patch #4275
r23652 / patch #4276
r23654 / patch #4252
r23656 / bug #21108
r23659 / bug #21159
r23663 / bug #21232
r23666 / patch #3959
r23668 / bug #21238
r23672 / patch #4284
r23674 / bug #20984
r23677 / bug #21244
r23679 / bug #21060
r23687 / patch #3417
r23689 / patch #4283
r23691 / patch #4285
r23693 / patch #4290
r23698 / bug #21237
r23702 / patch #4015
r23706 / patch #4294
r23707 / bug #21116 & bug #21151
r23712 / patch #4289
r23718 / bug #21243 (1)
r23721 / patch #4299
r23722 / patch #4300
r23723 / patch #4301
r23724 / patch #4302
r23725 / patch #4303
r23733 / bug #21243 (2)
r23734 / bug #20535
r23745 / bug #21060
r23748 / bug #21009
r23751 / bug #20994
r23753 / bug #20872
r23756 / bug #21240
r23759 / patch #4305
r23762 / patch #4296
r23768 / task #7681
r23770 / bug #21293
r23771 / bug #21295
r23772 / bug #21300
r23773 / patch #4313
r23774 / bug #21297
r23775 / patch #4314
r23776 / bug #21301
r23777 / patch #4315
r23778 / patch #4316
r23805 / patch #4311
r23813 / bug #20031
r23815 / patch #4320
r23819 / patch #4319
r23824 / bug #21312
r23835 / patch #4327
r23836 / patch #4326
r23850 / patch #4332
r23851 / patch #4188
r23856 / patch #4333
r23860 / bug #21268
r23863 / patch #4337
r23868 / patch #4339
r23875 / patch #4341
r23878 / patch #4304
r23879 / bug #21361
r23880 / patch #4347
r23881 / patch #4348
r23882 / patch #4349
r23889 / patch #4343
r23897 / bug #21367
r23901 / bug #21371
r23902 / patch #4354
r23905 / patch #4353
r23908 / bug #21370
r23910 / bug #20588
r23913 / bug #21278
r23917 / patch #4364
r23918 / bug #21381
r23919 / bug #21380
r23920 / bug #21369
r23926 / bug #21389
r23927 / bug #21349
r23928 / bug #21385
r23929 / bug #21383
r23937 / bug #21393
r23938 / bug #21392
r23940 / bug #21395
r23941 / bug #21384
r23942 / patch #4365
r23958 / patch #4367
r23960 / patch #4370
r23964 / patch #4369
r23968 / bug #21399
r23973 / bug #21329
r23975 / bug #21401
r23979 / patch #4373
r23983 / bug #21406
r23987 / patch #4280
r23993 / bug #21412
r23994 / bug #21143
r23995 / patch #4384
r24006 / bug #21407
r24009 / patch #4380
r24013 / patch #4385
r24022 / patch #4396
r24024 / bug #21417
r24025 / bug #21424
r24026 / bug #21425
r24027 / bug #21430
r24028 / bug #21433
r24029 / bug #21432
r24055 / patch #4386
r24057 / patch #4394
r24061 / bug #21427
r24069 / patch #4414
r24073 / bug #21453
r24081 / bug #21438
r24085 / patch #4402
r24091 / bug #21452
r24097 / bug #20030 (1)
r24100 / bug #21456
r24104 / bug #21462
r24110 / bug #19932
r24112 / bug #20842
r24118 / bug #21359
r24122 / patch #4418
r24124 / bug #21279
r24125 / bug #21471
r24126 / bug #21472
r24127 / patch #4426
r24136 / patch #4399
r24139 / patch #4422
r24142 / patch #4423
r24144 / bug #21454
r24147 / patch #4421
r24153 / patch #4427
r24160 / patch #4431
r24163 / bug #21494
r24169 / bug #21511
r24172 / bug #21461
r24179 / bug #21416
r24181 / bug #21506
r24187 / bug #19589
r24189 / bug #21516
r24190 / bug #21517
r24191 / patch #4442
r24200 / patch #4443
r24205 / patch #4446
r24207 / patch #4437
r24212 / patch #4435
r24214 / bug #21403
r24217 / patch #4432
r24220 / patch #3897
r24223 / patch #4120
r24225 / patch #4436
r24227 / bug #21527
r24237 / bug #21524
r24242 / patch #4448
r24244 / bug #19720
r24247 / bug #21534
r24250 / bug #21521
r24252 / bug #21533
r24254 / patch #4438
r24258 / bug #21546
r24261 / bug #21474
r24263 / bug #20521
r24264 / patch #4450
r24265 / bug #21528
r24271 / bug #21526
r24275 / bug #21529
r24280 / bug #21523
r24285 / bug #21535
r24286 / bug #21538
r24290 / bug #17588 (commit message claims #17558)
r24294 /
r24297 / patch #4453
r24299 / bug #21387
r24300 / bug #21544
r24308 / bug #21568 (attempt #1)
r24310 / bug #21568 (attempt #2)
r24314 / bug #21558
r24318 / bug #21547
r24321 / patch #4457
r24325 / bug #21551
r24330 / patch #4454
r24338 / patch #4465
r24345 / task #7754
r24350 / patch #4461
r24352 / patch #4471
r24359 / bug #21560
r24360 / bug #21596
r24361 / bug #21595
r24371 / patch #4460
r24373 / patch #4467
r24397 / bug #21589
r24399 / patch #4478
r24402 / bug #21603
r24405 / patch #4451
r24409 / bug #21549
r24412 / bug #21495
r24415 / patch #4449
r24420 / bug #21496
r24424 / bug #21624
r24425 / bug #21519
r24430 / patch #4389
r24432 / patch #4468
r24434 / patch #4469
r24437 / bug #21612
r24439 / patch #4481
r24441 / patch #4483
r24444 / bug #21602
r24449 / patch #4445
r24452 / patch #4466
r24454 / bug #21623
r24456 / bug #21635
r24461 / bug #21644
r24463 / bug #21632
r24467 / bug #21410
r24470 / patch #4492
r24477 / bug #21637
r24480 / bug #21604
r24486 / bug #21631
r24489 / patch #4497
r24492 / bug #21658
r24493 / bug #21126
r24494 / patch #4507
r24495 / bug #21315
r24496 / bug #19909
r24506 / patch #4503
r24508 / patch #4506
r24510 / patch #4504
r24520 / patch #4512
r24522 / bug #21657
r24525 / bug #21698
r24531 / patch #4515
r24534 / bug #21656
r24538 / patch #4522
r24543 / bug #21532
r24550 / bug #21668
r24553 / bug #21442
r24554 / bug #21713
r24555 / bug #21712
r24564 / bug #21693
r24570 / bug #21714
r24573 / bug #21728
r24578 / bug #21640
r24585 / patch #4513 (ticket 2.6 only, but same functionality in another S2_5 ticket)
r24586 / bug #21663
r24591 / bug #20625
r24596 / patch #4526
r24607 / bug #21742
r24619 / bug #21733
r24629 / patch #4560
r24631 / bug #21738
r24640 / bug #21767
r24646 / patch #4590
r24651 / bug #21348
r24656 / patch #4569
r24658 / bug #21773
r24666 / bug #21781
r24669 / bug #21777
r24673 / patch #4595
r24677 / patch #4563
r24679 / patch #4601
r24682 / patch #4505
r24684 / bug #21794
r24686 / bug #21630
r24693 / bug #21436
r24702 / patch #4615
r24708 / bug #21806
r24718 / patch #4616
r24721 / bug #21852
r24724 / patch #4416
r24726 / patch #4626
r24729 / bug #21853
r24732 / bug #21807
r24738 / patch #4609
r24745 / bug #21696
r24759 / patch #4405
r24763 / bug #21895
r24767 / patch #4610
r24772 / patch #4646
r24776 / bug #21892
r24780 / bug #21796
r24783 / patch #4640
r24785 / bug #21470
r24788 / patch #4656
r24791 / patch #4400
r24795 / bug #21946
r24797 / patch #4637
r24799 / bug #21952
r24808 / bug #21901
r24810 / patch #4642
r24812 / bug #21061
r24815 / patch #4665
r24818 / patch #4641
r24820 / bug #21504
r24823 / bug #21972
r24829 / bug #21913
r24832 / bug #21897
r24838 / patch #4636
r24845 / patch #4682
r24847 / patch #4674
r24850 / patch #4675
r24855 / patch #4676
r24857 / patch #4677
r24859 / patch #4678
r24862 / patch #4672
r24867 / bug #22011
r24878 / bug #21553
r24887 / bug #20789
r24892 / bug #21896
r24895 / bug #21326
r24898 / patch #4689
r24901 / patch #4693
r24904 / bug #21899 (1)
r24907 / bug #21899 (2)
r24918 / bug #22048
r24922 / bug #21160, bug #21161
r24925 / bug #22054
r24928 / bug #22056
r24932 / bug #21409
r24936 / bug #21898
r24939 / bug #22066
r24942 / bug #22067
r24945 / patch #4711
r24949 / patch #4714
r24951 / patch #4716
r24954 / patch #4696
r24955 / patch #4697
r24956 / patch #4698
r24960 / bug #22049
r24963 / bug #22078
r24966 / patch #4715
r24968 / bug #22057
r24973 / bug #21583 (1)
r24981 / bug #22099
r24983 / patch #4733
r24987 / patch #4732
r24910 / bug #21988
r24990 / bug #22094
r24993 / patch #4719
r24995 / bug #21583 (2)
r24997 / patch #4740
r24999 / bug #22108
r25003 / patch #4742
r25005 / patch #4694
r25008 / patch #4725
r25010 / patch #4729
r25011 / patch #4730
r25012 / patch #4731
r25020 / bug #22085
r25021 / patch #3137
r25022 / bug #22080
r25023 / bug #22083
r25028 / bug #22076
r25034 / bug #22106
r25038 / bug #22118 (1)
r25039 / bug #22119
r25040 / bug #22120
r25045 / patch #4732
r25049 / bug #22126
r25051 / bug #21492
r25060 / bug #22111
r25064 / bug #22114
r25072 / bug #22118 (2)
r25073 / bug #22141
r25074 / bug #22142
r25075 / patch #4773
r25082 / bug #18872
r25088 / patch #4778
r25092 / bug #22150
r25093 / bug #22153
r25094 / bug #22151
r25095 / bug #22152
r25096 / bug #22143
r25097 / bug #22155
r25098 / bug #22098
r25099 / bug #22157
r25100 / patch #4657
r25118 / patch #4786
r25121 / bug #22166
r25123 / patch #4785
r25126 / patch #4791
r25128 / bug #21726
r25132 / bug #22077
r25139 / bug #19307
r25143 / patch #4782
r25145 / bug #22185 (bug #22193)
r25148 / patch #4798
r25152 / patch #4792
r25154 / patch #4784
r25155 / bug #22165
r25156 / bug #22172
r25157 / bug #22190
r25158 / bug #22189
r25159 / bug #22194
r25160 / bug #22195
r25170 / bug #22202
r25171 / bug #22200
r25172 / bug #22198
r25173 / bug #22199
r25174 / bug #22201
r25175 / bug #22203
r25189 / bug #22183
r25193 / patch #4795
r25195 / bug #22136
r25197 / patch #4807
r25206 / bug #22209
r25208 / bug #22192
r25215 / bug #22170
r25218 / patch #4815
r25222 / bug #22125
r25226 / bug #22225
r25237 / patch #4824
r25239 / bug #22227
r25242 / patch #4808
r25244 / patch #4814
r25247 / patch #4827
r25249 / bug #22194
r25250 / patch #4834
r25258 / patch #4836
r25260 / patch #4838
r25263 / bug #22074
r25266 / bug #22222
r25268 / bug #22138
r25276 / patch #4846
r25281 / bug #22235
r25285 / bug #22191
r25289 / bug #22161
r25290 / bug #19176
r25296 / patch #4852
r25313 / patch #4154
r25315 / bug #22236
r25317 / bug #22188
r25319 / bug #22228
r25325 / patch #4864
r25328 / patch #4845
r25330 / bug #22240
r25338 / patch #22241
r25340 / bug #22246
r25341 / patch #4873 (bug #21446)
r25342 / bug #22247
r25343 / patch #4874
r25344 / patch #4521
r25345 / patch #3794
r25346 / patch #4875
r25347 / patch #4876
r25363 / bug #22204
r25369 / patch #4870
r25376 / patch #4883
r25379 / patch #4882
r25386 / patch #4847
r25391 / patch #4842
r25402 / bug #22266
r25405 / patch #4879
r25407 / bug #22184
r25411 / patch #4905
r25412 / bug #22244
r25413 / bug #22272
r25418 / patch #4907
r25419 / bug #22276
r25420 / bug #22277
r25421 / bug #22278
r25422 / bug #22271
r25432 / patch #4901
r25432 / bug #22245
r25446 / patch #4908
r25447 / bug #22281
r25452 / bug #22260
r25454 / patch #4878
r25457 / patch #4811 (backported to S2_5 in patch #5544)
r25458 / bug #22124
r25465 / bug #22062 (backported to S2_5 in patch #5100)
r25473 / bug #22274
r25475 / bug #22291
r25476 / bug #22292
r25477 / bug #22294
r25481 / bug #22289
r25483 / bug #22168
r25492 / bug #22059 (backported to S2_5 in patch #5098)
r25493 / bug #22300
r25494 / patch #3405
r25498 / patch #4916
r25501 / patch #4848
r25504 / patch #4806 (backported to S2_5 in patch #5564)
r25527 / bug #21629
r25531 / patch #4859
r25537 / bug #22167
r25538 / bug #22302
r25539 / bug #22318
r25545 / bug #22311
r25551 / patch #4934
r25552 / patch #4937
r25568 / bug #22322
r25569 / patch #4125
r25570 / bug #22325
r25582 / patch #4941
r25584 / patch #4942
r25588 / bug #22294
r25589 / bug #22343
r25594 / bug #22320
r25598 / bug #22339
r25607 / patch #4945
r25615 / bug #22050
r25618 / bug #22299
r25620 / bug #20538
r25640 / bug #21550
r25643 / bug #21493
r25645 / bug #22344
r25652 / patch #4933
r25658 / patch #4946
r25660 / patch #4957
r25666 / bug #18191
r25668 / patch #4931
r25675 / patch #4960
r25677 / bug #22303
r25680 / bug #22377
r25682 / bug #22345
r25685 / bug #22079
r25687 / bug #22363
r25690 / bug #22366
r25694 / bug #22360
r25697 / patch #4912
r25699 / patch #4972 (later reverted from S2_6)
r25703 / bug #22371
r25707 / bug #22341
r25710 / bug #22380
r25715 / patch #4973 (part 1)
r25718 / patch #4973 (part 2)
r25720 / bug #22058 (backported in another ticket)
r25722 / bug #21468
r25751 / bug #22399
r25757 / patch #5000
r25765 / bug #22405
r25773 / bug #22415
r25774 / bug #22419
r25778 / patch #5008
r25779 / bug #22365
r25780 / patch #5009
r25795 / bug #22413
r25798 / bug #20723
r25805 / bug #22425
r25806 / bug #22340
r25807 / bug #22431
r25808 / patch #5012
r25809 / bug #22427
r25811 / bug #22430
r25812 / bug #22429
r25831 / bug #22434
r25832 / bug #22438
r25851 / bug #22447
r25854 / bug #22445
r25858 / patch #4351
r25860 / bug #22364
r25863 / patch #5016
r25868 / bug #22453
r25873 / bug #22330
r25875 / bug #22436
r25891 / bug #22394
r25894 / bug #22391
r25896 / patch #4982
r25899 / bug #21373
r25904 / bug #19848
r25911 / patch #5031
r25915 / bug #16864
r25923 / bug #22467
r25931 / patch #5042
r25935 / patch #5040
r25937 / patch #5039
r25939 / patch #5041
r25948 / bug #22479
r25950 / bug #22481
r25953 / bug #22457
r25956 / patch #5053
r25958 / bug #22495
r25961 / patch #5047
r25964 / patch #5046
r25967 / bug #22463
r25970 / bug #21573
r25979 / patch #5054
r25981 / patch #5055
r25983 / patch #5056
r25985 / patch #5057
r25987 / patch #5058
r25991 / patch #5060
r25992 / bug #22497
r25998 / bug #21601
r26001 / bug #20029
r26004 / bug #21935
r26009 / bug #22458
r26018 / bug #22500
r26019 / patch #5064
r26021 / bug #22503
r26034 / bug #22474
r26037 / patch #5045
r26043 / bug #22509
r26049 / bug #22511
r26060 / bug #22521 (continuation to bug #22058)
r26070 / bug #21387 & bug #21554
r26071 / bug #22462
r26084 / patch #5087
r26086 / bug #21552
r26089 / patch #5112
r26097 / bug #22517

Reverted
r25730 / bug #22381

Just cleanup
r23451 / patch #4198
r24690 / patch #4604
r24696 / patch #4606
r24757 / patch #4607
r24790 / patch #4661
r24916 / patch #4705
r24971 / patch #4707
r25081 / patch #4763 (1)
r25085 / patch #4763 (2)
r25130 / patch #2937
r25192 / patch #4681
r25214 / patch #4809
r25274 / patch #4844
r25311 / patch #4822
r25324 / patch #4863
r25388 / patch #4895
r25389 / patch #4881
r25394 / patch #4888 (fixed in r25696 / bug #22359)
r25397 / patch #4891 (partly reverted in r25463 / bug #22287)
r25398 / patch #4892
r25445 / ??
r25463 / bug #22287 (fix to r25397 / patch #4891)
r25464 / patch #4909
r25491 / patch #4921
r25518 / patch #4924
r25530 / patch #4929
r25553 / patch #4938
r25554 / patch #4939
r25696 / bug #22359
r25740 / patch #4989
r25763 / patch #4974

Bootstrap file updates
r22881 / patch #3918
r22941 / patch #3939
r24590 / patch #4550
r25053 / patch #4751
r25335 / patch #4850
r25384 / patch #4880
r25866 / patch #5022

Configure relies less on hardcoded 'sed', but currently still does
r25662 / patch #4958

Freeciv development tools changes
r23807 / patch #4312

Minimum libtool version is 1.5.2
r25764 / patch #5002

Minimum gettext version is 0.14
r25794 / patch #5005

Optimizations that should not have other effects
r24605 / patch #4557
r24676 / patch #4591
r24911 / patch #4701
r24912 / patch #4702
r24913 / patch #4703
r25227 / patch #4831
r25280 / patch #4820

Network protocol (size) optimizations
r23412 / patch #4178
r25374 / patch #4886
r25614 / patch #4962

Internal utility function changes
r23107 / patch #4025
r23170 / patch #4053
r23175 / patch #4061
r23255 / patch #4122
r23275 / patch #4128
r23278 / patch #4127
r23829 / patch #4321
r23853 / patch #4328
r24219 / bug #21518
r24336 / patch #4463
r24814 / patch #4558
r25002 / patch #4744
r25151 / patch #4802
r25201 / patch #4813
r25396 / patch #4890
r25578 / patch #4940
r25741 / patch #4990
r25902 / patch #5020 (part 1)
r25928 / patch #5020 (part 2)
r26026 / patch #5065
r26047 / bug #22514
r26092 / patch #5113
r26093 / patch #5114
r26100 / patch #5089

Release Cycle related improvements
r23108 / patch #4027
r25017 / patch #4748
r25067 / bug #22127
r25761 / patch #4747 (part 1)
r25797 / patch #4747 (part 2)

Obsolete files removed
r23151 / patch #4055 (change to later removed debian packaging)
r23935 / patch #4358 (debian directory)
r23985 / patch #4376
r24837 / patch #4673
r25031 / patch #4752
r25275 / paych #4843

Taking advantage of C11 & C++11 when possible
r25521 / patch #4920
r25522 / bug #22323
r25649 / bug #22362
r25725 / bug #22323
r25768 / patch #4998

README.AI_modules has now ChangeLog for AI module developers to check
r25437 / patch #4896

Misc documentation
r23249 / patch #3911
r25001 / patch #4741
r25348 / patch #4871
r25410 / patch #4903

Translator comment improvements
r25332 / patch #4833

Extras
r22819 / patch #3880
r22834 / patch #3894
r22936 / patch #3931
r22938 / patch #3934
r22966 / patch #3942
r22981 / patch #3945
r22982 / patch #3948
r22991 / patch #3949
r22993 / patch #3950
r23003 / patch #3952
r23011 / patch #3953
r23016 / patch #3961
r23019 / patch #3968
r23020 / patch #3970
r23022 / patch #3973
r23032 / patch #3971
r23043 / patch #3987
r23049 / patch #3976
r23055 / patch #3999
r23063 / patch #4002
r23067 / patch #3988
r23095 / patch #4005
r23097 / bug #20986
r23111 / patch #4010
r23117 / patch #4009
r23138 / patch #4022
r23147 / patch #4054
r23153 / patch #4056
r23161 / patch #4057
r23169 / patch #4065
r23198 / patch #4081
r23202 / patch #4073
r23204 / bug #21021
r23205 / patch #4080
r23208 / patch #4085
r23216 / patch #4086
r23245 / patch #4109
r23286 / patch #4136
r23294 / bug #21094
r23318 / patch #4139
r23325 / patch #4141
r23332 / patch #4142
r23340 / patch #4155
r23353 / patch #4163
r23425 / patch #4177
r23450 / patch #4193
r23494 / patch #4210
r23497 / patch #4211
r23512 / patch #4222
r23524 / patch #4227
r23534 / patch #4229
r23544 / patch #4234
r23562 / patch #4235
r23566 / patch #4242
r23573 / patch #4247
r23574 / patch #4248
r23580 / patch #4249
r23582 / bug #21196
r23588 / patch #4253
r23594 / patch #4256
r23621 / patch #4260
r23625 / patch #4266
r23633 / patch #4271
r23641 / patch #4270
r23697 / patch #4286
r23705 / patch #4293
r23736 / patch #4279
r23761 / patch #4297
r23764 / patch #4308
r23804 / patch #4309
r23812 / patch #4318
r23820 / bug #21319
r23821 / patch #4317
r23822 / bug #21318
r23828 / patch #4323
r23830 / patch #4324
r23854 / patch #4330
r23858 / patch #4329
r23859 / patch #4334
r23862 / bug #21341
r23866 / patch #3954
r23867 / patch #4335
r23888 / patch #4342
r23915 / patch #4355
r23936 / patch #4363
r23966 / patch #4360
r23972 / bug #21374
r23976 / patch #4371
r24004 / patch #4375
r24008 / patch #4377
r24015 / bug #21414
r24018 / bug #21421
r24019 / bug #21419
r24020 / bug #21418
r24054 / patch #4403
r24080 / bug #21382
r24168 / patch #4434
r24476 / patch #4494
r24537 / bug #21625
r24589 / patch #4520
r24611 / big #21734
r24672 / patch #4496
r24701 / bug #21805
r24737 / bug #21857
r24801 / bug #21949
r24840 / patch #4670
r25560 / bug #22034
r25580 / bug #22312
r25665 / patch #4897
r25701 / bug #22369
r25750 / bug #22398
r25760 / patch #4968
r25771 / patch #5004
r25872 / patch #5024
r25889 / bug #22216
r25890 / bug #22386
r25989 / patch #5025 (commit message says "bug #5025")

Properties earlier belonging to bases and/or roads now properties of extras
r23074 / patch #3994
r23234 / patch #4103
r23271 / patch #4110
r23390 / patch #4157
r23417 / patch #4179
r23430 / patch #4175
r23526 / patch #4228 (1)
r23527 / patch #4228 (2)
r23565 / patch #4238
r23610 / patch #4261
r23662 / patch #4272
r24158 / patch #4425
r25867 / patch #5023
r26052 / patch #5080
r26054 / bug #22532
r26096 / patch #5081

Any extra can have new flag "Refuel". Bases are no longer automatically
considered refuel points (flag needed)
r23243 / patch #4106

Added new effects "Irrigation_Pct", "Mining_Pct" to unhardcode effects
of tile extras
r23023 / patch #3965
r23031 / patch #3967

New "Oil Well" extra has replaced "Mine" on some terrains on classic, experimental,
multiplayer, and civ2civ3 rulesets
r23896 / patch #4131
r24417 / bug #21559 (differs from S2_5 implementation)

Activity target related simplifications possible thanks to having
single extra type
r23027 / patch #3975
r23040 / patch #3986
r23056 / patch #3993
r23101 / patch #4024
r23600 / patch #4258
r23624 / patch #4265

Activity time rework to unify them.
r26012 / patch #5026

"Farmland" tech flag removed as obsolete. Have tech requirement for
appropriate extra instead
r23088 / patch #3995

Terrain changing ACTIVITY_MINE user-visible name changed to "Plant"
r24157 / patch #4382

Removed road flag "Natural" as obsolete
r24177 / patch #4424 (different version of the patch gone to S2_5)

Alien ruleset (not part of distribution)
r22815 / patch #3350
r22816 / patch #3600 (1)
r22817 / patch #3600 (2)
r23414 / bug #21133
r23440 / bug #21140
r24066 / patch #4404
r26013 / bug #22507

Stub ruleset (not part of distribution)
r25199 / patch #4362
r25221 / patch #4823
r25672 / patch #4959

Refactoring for freeciv-web support
r24459 / patch #4484
r26056 / patch #4485

Extra owner is distinct from tile (border) owner.
For example vision providing bases can now work outside owner's borders.
As a result, buoys are again enabled in multiplayer ruleset. In all supplied
rulesets buoys border claiming ability removed.
r22818 / patch #3630
r22825 / patch #3872
r22830 / patch #3873
r22835 / patch #3874
r22840 / patch #3878
r23046 / bug #20955
r23210 / bug #21039
r23511 / bug #21164
r25016 / bug #22110

When AI selects defense units, it doesn't automatically consider all sea
units bad, but checks for BadCityDefender flag
r22826 / patch #3885

Loading savegames saved by pre-2.0 freeciv not supported any more.
Such savegames need to be loaded to some freeciv version from between,
saved there, and then loaded to freeciv 2.6.
r22833 / patch #3858

Order of various things saved to savegame for future compatibility:
- diplstate_types
- city_options
r23506 / patch #4225
r23547 / patch #4237

Replaced requirement property "negated" with opposite "present".
r22861 / patch #3879

gtk3-client uses standard gtk3 button interface for governor
r22931 / patch #3560

BaseFlag and RoadFlag requirement types
r22937 / patch #3832

"Diplomatic relation" requirement type
r23206 / patch #4051
r23215 / patch #4091
r23244 / patch #4107
r23284 / patch #4097
r23453 / patch #4201
r26014 / patch #5068 (part 1)
r26016 / patch #5068 (part 2)
r26091 / bug #22524

New requirement type "Extra" replaced old "Special", "Base", and "Road"
requirement types
r22998 / patch #3951
r23033 / patch #3985
r23052 / patch #3998
r23057 / patch #3997

Building obsolescense reasons are defined as requirement list,
any fulfilled requirement makes building obsolete.
r22975 / patch #3941
r25284 / bug #22238
r25745 / patch #4993

New "Revolution_Unhappiness" replaces old "Revolution_When_Unhappy" effect
- Not boolean, but value tells how many turns of city disorder will be tolerated
- Works at city resolution instead of player
r23096 / patch #4021
r23129 / bug #20990
r23295 / bug #21102

Replaced penalties defined for Polluted and Fallout tiles with new
Output_Tile_Punish_Pct effect
r23099 / patch #3974
r23139 / patch #4042
r23313 / patch #4149

Victory conditions are now controlled by new "victories" server setting
r23118 / patch #4017 (1)
r23119 / patch #4017 (2)
r23125 / patch #4018

Effect type "Victory". Ruleset can define victory conditions just as requirements
for effect granting victory
r23320 / patch #4151

Achievements (doc/README.achievements)
r23134 / patch #4028
r23137 / patch #4029
r23141 / patch #4035
r23143 / patch #4036
r23150 / patch #4030
r23154 / patch #4037
r23158 / patch #4052
r23201 / patch #4038 (new requirement type)
r23319 / patch #4150
r23335 / patch #4162
r23348 / patch #4066 (lua scripting signal)
r23459 / patch #4161
r24159 / bug #21440
r24231 / bug #21441
r24891 / patch #4691
r24894 / patch #4692
r24941 / patch #4709
r25651 / patch #4947
r25664 / patch #4948

SDL2-client
r23136 / patch #4045
r23140 / patch #4047
r23142 / patch #4048
r23152 / patch #4060
r23155 / patch #4063
r23168 / patch #4070
r23180 / patch #4062
r23203 / patch #4083
r23207 / patch #4090
r23270 / patch #4094
r23356 / bug #21125
r23441 / patch #4183
r23578 / patch #4250
r23579 / patch #4251
r23601 / patch #4259
r23632 /
r23891 / bug #21368
r24077 / patch #4383
r24332 / patch #4419
r24337 / patch #4464
r24479 / patch #4480
r24517 / patch #4508
r24595 / patch #4527
r24618 / patch #4570
r24627 / patch #4568
r24664 / patch #4566
r24695 / patch #4603
r24712 / patch #4620
r24735 / patch #4631
r24775 / patch #4633
r24782 / patch #4634
r24789 / patch #4660
r24944 / patch #4710
r25138 / patch #4793
r25150 / patch #4796
r25200 / patch #4810
r25287 / patch #4835 (part 1)
r25372 / patch #4879
r25503 / patch #4917
r25533 / patch #4359
r25610 / patch #4956
r25701 / patch #4969
r25726 / bug #22370
r25735 / patch #4835 (part 2)
r25800 / patch #4835 (part 3)
r25913 / bug #22460
r25997 / patch #4835 (part 4)
r26095 / patch #5078

Action enablers (doc/README.actions)
r23221 / patch #4098
r23230 / patch #4077
r23247 / patch #4078
r23254 / patch #4079
r23265 / patch #4100
r23274 / patch #4126
r23281 / patch #4137
r23285 / patch #4140
r23289 / patch #4138
r23300 / bug #21103
r23308 / patch #4146
r23336 / patch #4164
r23339 / patch #4167
r23387 / patch #4172
r23413 / patch #4180
r23429 / patch #4184
r23439 / patch #4191
r23444 / patch #4194
r23445 / patch #4195
r23446 / patch #4170
r23461 / bug #21149
r23478 / patch #4204
r23484 / patch #4207
r23485 / patch #4212 (1)
r23486 / patch #4212 (2)
r23493 / patch #4209
r23501 / patch #4217
r23507 / patch #4220 (different version of the patch committed to S2_5)
r23561 / patch #4240
r23564 / patch #4186
r24209 / patch #4437
r24210 / patch #4374
r24312 / bug #21555
r24313 / bug #21556
r24347 / patch #4472
r24348 / bug #21588
r24349 / patch #4473
r24460 / patch #4495
r24485 / bug #21645
r24576 / patch #4546
r24578 / patch #4547
r24580 / patch #4548
r24581 / patch #4549
r24583 / bug #21727
r24600 / patch #4556
r24603 / patch #4571
r24604 / patch #4576
r24644 / patch #4587
r24699 / patch #4622
r24717 / patch #4627
r24836 / bug #21980
r24869 / bug #22016
r25091 / patch #4775
r25383 / bug #22255
r25593 / bug #22349
r25755 / patch #4995
r25762 / bug #22400
r25838 / bug #22442
r25839 / patch #5017
r25843 / patch #5018
r25877 / patch #5019
r25903 / patch #4671
r25914 / bug #22468
r25917 / bug #22469
r25918 / patch #5035
r25929 / bug #22478
r25941 / patch #5048
r25942 / patch #5050
r25943 / patch #5051
r25944 / patch #5049
r25945 / patch #5052
r25988 / patch #5059
r25995 / patch #5062
r26015 / bug #22506
r26031 / bug #22510
r26075 / patch #5102
r26094 / patch #5121

Spy and caravan action dialogs reworked and combined as a result
of action enablers. They need to be built dynamically to match the rules.
r23347 / patch #4169
r23870 / patch #4338 (1)
r23874 / patch #4338 (2)
r23894 / bug #21366
r24358 / patch #4475
r24613 / patch #4579
r24614 / patch #4580
r24615 / patch #4581
r24616 / patch #4583
r24624 / patch #4584
r24626 / patch #4586
r25738 / patch #4986
r25996 / patch #5063

Queue of multiple simultaneously unresolved diplomat/spy dialogs
r24375 / patch #4476
r24446 / patch #4488
r24447 / patch #4489
r24448 / patch #4491
r24473 / patch #4498
r24483 / patch #4502
r24513 / bug #21651
r24519 / patch #4514
r24530 / patch #4200
r24769 / bug #21900
r24770 / patch #4653

Action success probabilities display
r24474 / patch #4500
r24505 / patch #4501
r24545 / patch #4525
r24548 / patch #4528
r24549 / patch #4529
r24563 / patch #4538
r24569 / patch #4539
r24643 / bug #21766
r24655 / patch #4594
r24716 / patch #4628
r24771 / patch #4654
r24807 / patch #4666
r25146 / patch #4800
r25147 / patch #4801
r25490 / patch #4918

AI diplomat might sabotage unit
r24715 / patch #4153

Unit_Bribe_Cost_Pct effect
r23238 / patch #3412
r23246 / patch #4121

"TerrChangeRemoves" extra flag. Added it to Ruins in all supplied rulesets
so them disappear when ever terrain changes.
r23302 / bug #20898

gtk3-client zoom (stalled development)
r23312 / patch #4148
r24711 / patch #4619

Timeout -1 works for AI types that do not run at once in turn change
(such as threaded AI). Like human players, also AI is expected to inform
server when they have finished their turn.
r23361 / patch #4171
r23520 / bug #21165
r23546 / bug #21171

Client uses meta knowledge to indicate uncertainty if action is possible
r23389 / bug #21105
r23421 / patch #4182
r23452 / patch #4185
r23469 / patch #4203
r23538 / patch #4236
r24514 / bug #21646
r24527 / patch #4517
r24529 / bug #21694
r24546 / patch #4524
r24582 / patch #4552
r24698 / patch #4617
r25717 / patch #4977
r25727 / patch #4980
r25748 / patch #4996
r25912 / patch #5030

Illegal actions cost movement
r23468 / patch #4199

freeciv-ruledit
r23434 / patch #4144
r23535 / patch #4233
r23539 / bug #21180
r23563 / patch #4241
r23581 / patch #4246
r23586 / patch #4243
r23622 / patch #4264
r23623 / patch #4263
r23637 / patch #4269
r23683 / patch #4281
r23684 / patch #4282
r23685 / ? (commit message claims patch #4282)
r23686 / bug #21251 
r23716 / patch #4295
r23717 / patch #4278
r23765 / patch #4306
r23793 / patch #4310
r23827 / patch #4322
r23837 / patch #4325
r23865 / patch #4336
r23873 / patch #4340
r23900 / patch #4352
r23912 / patch #4357
r23967 / patch #4368
r24005 / bug #21408
r24012 / patch #4381
r24068 / patch #4412
r24216 / patch #4440
r24232 / patch #4441
r24274 / bug #21537
r24355 / patch #4462
r24638 / patch #4452
r24663 / patch #4598
r24665 / patch #4593
r24938 / patch #4708
r24948 / patch #4713
r25037 / patch #4743
r25056 / patch #4770
r25071 / bug #21514
r25087 / patch #4776
r25115 / patch #4780
r25131 / patch #4790
r25401 / bug #22286
r25606 / bug #22348
r25650 / patch #4955
r25674 / patch #4963
r25729 / patch #4976
r25749 / bug #22401
r25772 / patch #5003 (part 1)
r25790 / patch #5003 (part 2)

init_techs and init_buildings lists are optional in ruleset
r24167 / bug #21443

AI handicap handling correctly divided between server common code and ai type
(just preparatory patch gone in - feature itself not even started yet)
r23460 / patch #4197

Requirement type "MaxUnitsOnTile"
r23525 / patch #4224

Requirement range "Alliance"
r23545 / patch #4231
r24021 / bug #21422
r24023 / bug #21423
r24062 / patch #4406

Requirement range "Team"
r24803 / patch #4388

Requirement range "Traderoute"
r25512 / patch #4459

Requirement type "UnitState"
r25732 / patch #4983
r25746 / patch #4894

Requirement type "MinMoveFrags"
r25927 / patch #5033

Requirement type "MinVeteran"
r26069 / patch #4902

gtk-clients have event icons in messages display
r23572 / patch #4165
r24466 / patch #4166 (1)
r25236 / patch #4166 (2)

Max number of normal players increased to 150, total to 160
r23587 / patch #4254

Preparations for automake-ng
r23645 / patch #4268
r25375 / patch #4825
r25561 / patch #4925
r25734 / patch #4975

Do configure checks specific to building included lua only if we build it
r23701 / patch #4287
r23823 / bug #21325

Animals
r23831 / patch #4232
r23899 / patch #4331
r23907 / bug #21376
r23916 / patch #4356
r25090 / patch #4777

Removed "nuke_contamination" ruleset setting as redundant.
This can be controlled by extra causes
r23877 / patch #3957

System lua is used by default
r23892 / patch #4344

Where in terrain.ruleset reference to another terrain or resource is needed,
it now is name of that object, not name of the secfile section it's in
r23893 / patch #4346

Added configure option --enable-sys-tolua-cmd to fix ages old cross-compilation
problem people have been expected to hack around
r23895 / patch #4345

Autosave type "Timer"
r23986 / patch #4379
r24060 / bug #21429

Ruleset control whether holes in tech tree are allowed
r24059 / patch #4397 (low-level refactoring)
r24150 / bug #21435 (fix to prev)
r24305 / patch #4415
r25339 / patch #4789

Pathfinding improvements
r24176 / patch #3887
r24222 / patch #3900
r24335 / patch #3903
r24766 / patch #4643
r25188 / patch #4768
r25213 / bug #22217 (& bug #22224)
r25279 / bug #22230
r25300 / patch #4856
r25467 / patch #4889
r25468 / patch #4910
r25469 / bug #22187
r25524 / patch #4926
r25623 / patch #4930
r25624 / patch #4932
r25713 / patch #4970
r25714 / patch #4971
r25716 / bug #22317
r25898 / patch #4985

Client shows warning dialog about incompatible topology/tileset
r24408 / patch #4474
r25393 / bug #22258

Modpack installer support for modpacks depending on each other
r24423 / patch #4479

Effects nreqs replaced with "present = FALSE" internally and in supplied rulesets
r24469 / patch #4482
r24592 / patch #4553
r24662 / patch #4561
r24697 / patch #4602
r24713 / patch #4621
r24753 / patch #4632
r24755 / patch #4411
r25032 / bug #21992
r25203 / patch #4679

Soundtrack system / Musicset
r24475 / patch #4490
r24540 / patch #4519
r24601 / patch #4542
r24610 / patch #4544
r24622 / patch #4559
r24628 / patch #4574
r24636 / patch #4545
r24637 / bug #21775
r24645 / patch #4575
r24650 / bug #21771
r24653 / patch #4534 (erronous commit message)
r24661 / patch #4573
r24681 / patch #4600
r24734 / patch #4613
r24817 / patch #4669
r24882 / bug #22029
r24886 / patch #4663
r25086 / patch #4612
r25733 / bug #22390
r25739 / patch #4964

Client options to enable/disable sound effects, in-game music, and menu music
r24516 / patch #4493
r24552 / patch #4518

Support for units that do not impose ZoC. In classic/civ2civ3/multiplayer/experimental rulesets
non-military units and most air units do not impose ZoC.
r24518 / bug #21507
r24704 / bug #21782
r24754 / bug #21894
r25540 / patch #4818
r25541 / patch #4935
r25611 / patch #4816

Added "NoZoc" terrain flag to control on which terrains Zoc rules apply
r24691 / patch #4597
r24931 / patch #4704

Styles setting rework. Added nation styles as the main class that player selects.
City styles are automatically derived from their requirements, and have resolution
of single city (same player can have cities with different styles)
r24528 / patch #4511
r24547 / patch #4523
r24572 / patch #4533
r24588 / bug #21721
r24700 / patch #4589
r24707 / patch #4611
r24720 / patch #4630
r24742 / patch #4635
r24744 / patch #4638
r24748 / bug #21886
r24865 / patch #4685
r24874 / patch #4687
r25114 / bug #22148

Culture
r24541 / patch #4019 (1)
r24542 / patch #4019 (2)
r24568 / patch #4020
r24599 / patch #4531
r24639 / patch #4567
r24841 / patch #4668
r24915 / patch #4695
r24992 / patch #4737
r25365 / patch #4736
r25520 / patch #4738
r25535 / patch #4906
r25736 / patch #4950
r26053 / patch #5086

No_Diplomacy effect no longer gives immunity against embassy establishing. Supplied rulesets
implement it via action enablers instead.
r24562 / patch #4537

Client does not always use specialist icons in the same order (male first)
r24567 / patch #4516

Effects Unbribable_Units and No_Incity obsoleted in favor of action enablers
based implementation
r24602 / patch #4572
r24612 / patch #4578
r24705 / patch #4624 (1)
r24706 / patch #4624 (2)

Gtk-clients show toolkit version in in "About Freeciv"
r24623 / patch #4565

Split international traderoute types to multiple types depending on
diplomatic relations
r24649 / patch #4499

Save AI difficulty levels by name to the savegame for forward compatibility
r24654 / patch #4592

Added "Handicapped" AI difficulty level
r24675 / patch #4599
r24758 / patch #4605

Added effect type "Traderoute_Pct"
r24692 / patch #3249

Client options are now saved inside .freeciv -directory
r24714 / patch #4387

Unhardcoded shore bombardment rules in relation to tile nativity
r24736 / patch #3830

Road types can be set to connect to each other
r24743 / patch #3829
r24872 / bug #22014
r25555 / bug #22319

AI does not prefer food when growth is already blocked
r24752 / patch #3697

Support for relative URL in modpack.list that allows copying it as is
from server to another
r24756 / patch #4618
r24802 / bug #21951

AI can use non-land moving units as "DefendGood" defenders
r24761 / patch #4645

AI can use amphibious defenders
r24779 / patch #4644

Move_mode restrictions also define legality of the move, not only
how much it costs. In supplied rulesets with river-moving triremes
this prevents diagonal movement from one river to another.
r24826 / bug #16383
r24890 / bug #22026

Airliftability of units is defined by unit class flag, not hardcoded to
(all) land units
r24827 / patch #3871
r24843 / bug #21993

Amphibious units are acceptable as Land Barbarians
r24828 / patch #4651

Fixes to handling of present = FALSE requirements
r24835 / bug #21982

AI has a better understanding which units a building provides
bonus effect for when evaluating them
r24870 / bug #21991 (1)
r24871 / bug #21991 (2)

Road types can have extra requirements for their beginning.
Alien ruleset Burrow Tube must begin from a tile next to land.
r24873 / patch #4688

Improved pathfinding (as used by AI) in respect to units with
non-classical nativity
r24881 / patch #3901
r24921 / bug #22053
r25259 / patch #4837
r25261 / patch #4839 (1)
r25270 / patch #4839 (2)

Graphical City Walls around cities is no longer boolean, but
tileset can provide several kinds of wall gfx to be used
as ruleset effects dictate.
Alien ruleset supports two Force Walls gfx; one when player does not know Strong Force,
and second when (s)he does
r24914 / patch #4393
r24937 / patch #4699

Revolution length settings reworked. "revolentype" determines how the "revolen"
is to be interpreted
r24920 / patch #4700
r24979 / patch #4717

Ruleset can give AI Traits as range where random value gets selected
r24972 / patch #4720
r24980 / bug #22113
r25044 / bug #22121
r25769 / bug #22412

AI builds military units for Martial Law benefits
r24975 / patch #3989

Configure option --with-modlist
r24986 / patch #4735

Team research rework
r25013 / patch #4727
r25014 / patch #4728
r25018 / bug #22129 (1)
r25019 / bug #22129 (2)
r25202 / patch #4769
r25334 / patch #4826
r25395 / bug #22252
r25466 / patch #4911
r25534 / patch #4922
r25581 / bug #22321
r25721 / patch #4979
r25770 / bug #22404
r25828 / bug #22403
r25909 / bug #22455
r26003 / patch #5037
r26007 / patch #5038
r26008 / patch #5043
r26032 / bug #22473
r26033 / patch #5044
r26059 / patch #5097
r26065 / patch #5103
r26066 / patch #5104
r26076 / patch #5105
r26077 / patch #5106
r26078 / patch #5107
r26079 / patch #5108
r26080 / patch #5109
r26081 / patch #5110

Versioning support for custom rulesets
r25015 / patch #4734
r25142 / patch #4761

Added lua function Terrain:class_name()
r25033 / patch #4746

Added menu music to stdmusic musicset (There was no menu music
in 2.5 even in stdsounds soundset where it technically belonged)
r25054 / patch #4753 (1)
r25055 / patch #4753 (2)

Calendar fragments resolution
r25063 / patch #4749

Added 'entertainer' tag to specialist.spec, pointing to same icon as 'elvis' that
remains for backward compatibility
r25066 / patch #4750

Specfiles received over network not saved to temporary file, but used
directly from memory
r25070 / bug #17467
r25113 / patch #4779

User can add nations of his/her own via new 'override' directory
r25112 / patch #3926
r25117 / bug #22169

Gtk3-client is now the default client (after it was made not-default in S2_5)
r25137 / patch #4772

Support for Pythagorean move cost for diagonal moves (no supplied ruleset uses this)
r25204 / patch #4819
r25257 / bug #22232

Improved diagnostics messages when something from the worklist can't be built
but gets postponed
r25205 / bug #21420

AI understand building to provide Defend_Bonus against any unit that
is in effect requirements via unit class, unit type, unit type flag, or
unit class flag. Previously it understood only the unit class requirements
r25210 / patch #4797

Player created by civil war gets same ai type as original player, not default type
r25235 / patch #4828

New AI callbacks for handling civil war situations. Default AI copies some data from
old player to new one there.
r25253 / patch #4829
r25366 / patch #4857

New AI game_start AI callback
r25486 / patch #4913

More sensible point of execution to call "city_got" and "city_lost" AI callbacks
r25747 / patch #4994

AI considers units with nativity other than traditional "Land-moving" as
defenders more seriously
r25262 / patch #4841

AI considers nativities of the bodyguard and charge when assigning bodyguards
r25271 / patch #4649

Hardcoded and limited IgWall unit type flag removed. Rulesets can have
finer grained control by introducing "present = FALSE" unit type requirements
for Defend_Bonus effects
r25273 / patch #4799

Experimental, and very limited, xml-backend for the registry
r25278 / patch #4745
r25361 / patch #4849
r25441 / patch #4884
r25488 / patch #4915

Worker Task control for human players
r25288 / patch #4851

Autoexplorers determine boundaries of areas to explore based on true nativity of
the explorer
r25297 / patch #4853

AI code to move units to safe-house considers nativity
r25298 / patch #4854

AI does not consider Amphibious units less capable of doing things just because
they can move on terrains other than land
r25299 / patch #4855
r25301 / patch #4858

AI does not consider harmless units as danger
r25312 / patch #4821

Ferryunits are allowed as starting units (again)
r25322 / patch #4861
r25562 / bug #22342

Improved AI settler ferry selection
r25323 / patch #4862

Rulesets can no longer override move_type of a unit
r25326 / patch #4865 (1)
r25327 / patch #4865 (2)

Building replaced_by information combined to obsolete_by vectors
r25333 / patch #1341

Unit state requirement support
r25382 / patch #4893

Ferry stats checking enabled in debug builds
r25390 / patch #4898

"NoBonus" road move mode obsoleted
r25409 / patch #4877
r25472 / bug #22290
r25559 / bug #22297

Pre-fortresses added to civ2civ3 ruleset
r25487 / patch #4608
r25536 / bug #22308
r25775 / bug #22420

Maglev added to civ2civ3 ruleset
r25705 / patch #4966
r25776 / bug #22421
r25777 / bug #22333

Air units reworked at civ2civ3
r25706 / patch #4812

Show ruleset description in server console
r25489 / patch #4914
r25810 / bug #22428

AI does not consider Fighters useful units (Regression!)
r25505 / patch #4927

AI understands value of the effects a tech provides directly (not as requirement
for building with effect) when evaluating tech value
r25519 / patch #4923
r25673 / patch #4944
r25758 / bug #22402

Map generation is now tried 3 times (instead of just 2) if it first fails
r25523 / patch #4900

Support 250000 simultaneously alive cities + units (added together)
r25556 / bug #21950 (another version of the patch gone to S2_5)

Worker count stats are no longer in advisors for all AI modules to use, but
internal to default AI
r25609 / patch #4953

Autosettlers consider imrovements to already worked tiles and potential future
tiles differently for the best overall results for the city. It no longer
thinks that mining unworked Coal Hill is less good than mining unworked regular Hill
simply because Coal Hill production gets penalized under Despotism.
r25612 / bug #21437 (Autosettlers)
r25613 / patch #4952 (Threaded AI - slighly better than autosettlers)

Ruleset sanity checking improvements
r25719 / patch #4978

Made it possible to have specialist types with space in their name
r25737 / patch #4981
r25754 / bug #22378
r25759 / patch #4972 (revert)

Improved AI analyzis of benefits provided by improvements
r25742 / patch #4885 (part 1)
r25743 / patch #4885 (part 2)

Improved Ai analyzis of defender to build
r25744 / patch #4991

Policies (effect multipliers) support
r25801 / patch #4830 (part 1)
r25802 / patch #4830 (part 2)
r25803 / patch #4830 (part 3)
r25922 / patch #5036

Server setting 'happyborders' turned to an enum, which
supports also 'ALLIED' range borders.
r25830 / patch #5001
r25857 / bug #22446

Switched to lua-5.3
r25888 / patch #5029

Ruleset can allow same unit to be able to both build fortresses and to fortify
r26042 / patch #5072

"NoFortify" terrain flag
r26048 / patch #5075

Client commandline option "--Hackless" in debug builds
r26055 / bug #20556

"Population_Pollution_Inc" tech flag retired in favor of new "Pollu_Pop_Pct_2" effect
civ2civ3: Knowledge of Industralization is not requirement for population pollution
r26067 / patch #5015

Veteran_Combat effect can depend on unit properties,
r26068 / patch #5094