= Changelog Overview =
[[TOC]]

This is a collection of links to changelogs, revisions and tickets of the first part (500–1 BC) of the free and open source game **[https://play0ad.com/game-info/project-overview/ 0 A.D.]**, sorted by its releases. As soon as work on the second part (AD 1–500) begins, a separate site should be created and linked at this place. The list is divided by the phases of the classic [https://en.wikipedia.org/wiki/Software_release_life_cycle software release life cycle].

The version number links to the release announcement with downloads, descriptions of major changes and an explanation of the codename. You can also click on the codename to get further information on Wikipedia. The release dates equal the dates of the announcements. However, the actual release dates can vary depending on OS (GNU/Linux, Windows and Mac OS). Have a look at the [http://releases.wildfiregames.com/ download archive] for further information. Changelogs describe selected changes out of all code revisions. Currently there are no changelogs available for Alpha 19 and older releases, but you are invited to help creating them. If you are interested, please contact us on IRC. The related trac tickets which were solved by the revisions are sorted by component.

Finally, if you are further interested in the project history of **0 A.D.**, especially the beginnings, you really should read [https://play0ad.com/about/the-story-of-0-a-d/ this article].

== Beta (0.x.x) ==
''Beta phase generally begins when the software is feature complete but likely to contain a number of known or unknown bugs. Software in the beta phase will generally have many more bugs in it than completed software, as well as speed/performance issues and may still cause crashes or data loss. The focus of beta testing is reducing impacts to users, often incorporating usability testing.'' [ [https://en.wikipedia.org/wiki/Software_release_life_cycle#Beta Wikipedia] ]

||=Version =||=Codename =||=Release Date =||=Last Commit =||=Changelog =||=Revisions =||=Tickets =||=Highlights =||

== Alpha (0.0.x) ==
''The alpha phase of the release life cycle is the first phase to begin software testing [... ...]. Alpha software can be unstable and could cause crashes or data loss. Alpha software may not contain all of the features that are planned for the final version. [... ...] The alpha phase usually ends with a feature freeze, indicating that no more features will be added to the software.'' [ [https://en.wikipedia.org/wiki/Software_release_life_cycle#Alpha Wikipedia] ]

||=Version =||=Codename =||=Release Date =||=Last Commit =||=Changelog =||=Revisions =||=Tickets =||=Highlights =||
||0.0.25 ||[https://wildfiregames.com/forum/topic/35736-alpha-25-name-suggestions Y——] ||TBA ||TBA ||[wiki:Alpha25 link] ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=head&stop_rev=24938&limit=999&verbose=on link] ||[query:?milestone=Alpha+25&group=component&col=id&col=summary&col=owner&order=priority link] ||TBA ||
||[https://wildfiregames.com/forum/topic/36582-new-release-0-ad-alpha-24-x%C5%A1ay%C4%81r%C5%A1%C4%81/ 0.0.24] ||[https://en.wikipedia.org/wiki/Xerxes_I Xšayāršā] ||2021-02-20\\''+791d'' ||r24937 ||[wiki:Alpha24 link] ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=24937&stop_rev=21947&limit=999&verbose=on link]\\''+2991'' ||[query:?milestone=Alpha+24&group=component&col=id&col=summary&col=owner&order=priority link]\\''+335'' ||new trees and animals, numerous art improvements, gameplay balance tweaks, civ folders in simulation templates, !SpiderMonkey 45→52→60→68→78, C++17 ||
||[https://wildfiregames.com/forum/topic/25164-re-release-of-0-ad-alpha-23-ken-wood/ 0.0.23b] ||[https://wildfiregames.com/forum/index.php?/topic/9732-ken-wood/ Ken Wood] ||2018-12-23\\''+222d'' ||r21946 ||[wiki:Alpha23 link] ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=21946&stop_rev=21822&limit=999&verbose=on link]\\''+125'' || ||GDPR compliance, OOS Fixes, translations fixes, network stability fixes ||
||[https://wildfiregames.com/forum/index.php?/topic/24348-new-release-0-ad-alpha-23-ken-wood/ 0.0.23] ||[https://wildfiregames.com/forum/index.php?/topic/9732-ken-wood/ Ken Wood] ||2018-05-16\\''+294d'' ||r21821 ||[wiki:Alpha23 link] ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=21821&stop_rev=19923&limit=999&verbose=on link]\\''+1899'' ||[query:?milestone=Alpha+23&group=component&col=id&col=summary&col=owner&order=priority link]\\''+218'' ||Kushite civilization, mod downloader, new cavalry and Spartan building models, combine victory conditions, unit information dialog ||
||[https://wildfiregames.com/forum/index.php?/topic/22663-new-release-0-ad-alpha-22-venustas/ 0.0.22] ||[https://en.wiktionary.org/wiki/venustas Venustas] ||2017-07-27\\''+262d'' ||r19922 ||[wiki:Alpha22 link] ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=19922&stop_rev=18916&limit=999&verbose=on link]\\''+1007'' ||[query:?milestone=Alpha+22&group=component&col=id&col=summary&col=owner&order=priority link]\\''+187'' ||New models and animations, Capture the Relic, Aura Range Visualization, Lobby Hosting with STUN, Summary Charts, Tutorial, Danubius, Extinct Volcano, Spies ||
||[https://wildfiregames.com/forum/index.php?/topic/21333-new-release-0-ad-alpha-21-ulysses/ 0.0.21] ||[https://en.wikipedia.org/wiki/Odysseus Ulysses] ||2016-11-08\\''+222d'' ||r18915 ||[wiki:Alpha21 link] ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=18915&stop_rev=17966&limit=999&verbose=on link]\\''+950'' ||[query:?milestone=Alpha+21&group=component&col=id&col=summary&col=owner&order=priority link]\\''+224'' ||Regicide, Seleucid models, new maps, !SpiderMonkey 38 ||
||[https://wildfiregames.com/forum/index.php?/topic/20628-new-release-0-ad-alpha-20-timosthenes/ 0.0.20] ||[https://en.wikipedia.org/wiki/Timosthenes Timosthenes] ||2016-04-01\\''+128d'' ||r17965 ||[wiki:Alpha20_Timosthenes link] ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=17965&stop_rev=17299&limit=999&verbose=on link]\\''+667'' ||[query:?milestone=Alpha+20&group=component&col=id&col=summary&col=owner&order=priority link]\\''+150'' ||new maps, new technologies, cinematic camera system ||
||[https://wildfiregames.com/forum/index.php?/topic/20238-new-release-0-ad-alpha-19-syllepsis/ 0.0.19] ||[https://en.wiktionary.org/wiki/%CF%83%CF%8D%CE%BB%CE%BB%CE%B7%CF%88%CE%B7 Syllepsis] ||2015-11-26\\''+258d'' ||r17298 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=17298&stop_rev=16412&limit=999&verbose=on link]\\''+887'' ||[query:?milestone=Alpha+19&group=component&col=id&col=summary&col=owner&order=priority link]\\''+269'' ||new pathfinder, capturing, visual replay, SDL2 ||
||[https://wildfiregames.com/forum/index.php?/topic/19709-new-release-0-ad-alpha-18-rhododactylos/ 0.0.18] ||[https://en.wikipedia.org/wiki/Eos Rhododaktylos] ||2015-03-14\\''+154d'' ||r16411 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=16411&stop_rev=15850&limit=999&verbose=on link]\\''+562'' ||[query:?milestone=Alpha+18&group=component&col=id&col=summary&col=owner&order=priority link]\\''+119'' ||technology tree, !SpiderMonkey 31, C++11 ||
||[https://wildfiregames.com/forum/index.php?/topic/19235-0-ad-alpha-17-quercus-is-now-released/ 0.0.17] ||[https://en.wikipedia.org/wiki/Oak Quercus] ||2014-10-12\\''+149d'' ||r15849 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=15849&stop_rev=15149&limit=999&verbose=on link]\\''+701'' ||[query:?milestone=Alpha+17&group=component&col=id&col=summary&col=owner&order=priority link]\\''+170'' ||combat rebalance, triggers, mod selection ||
||[https://wildfiregames.com/forum/index.php?/topic/18655-new-release-0-ad-alpha-16-pata%C3%B1jali/ 0.0.16] ||[https://en.wikipedia.org/wiki/Patanjali Patañjali] ||2014-05-17\\''+144d'' ||r15148 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=15148&stop_rev=14387&limit=999&verbose=on link]\\''+762'' ||[query:?milestone=Alpha+16&group=component&col=id&col=summary&col=owner&order=priority link]\\''+158'' ||localization, Petra AI, !SpiderMonkey 24 ||
||[https://wildfiregames.com/forum/index.php?/topic/17995-new-release-alpha-15-osiris/ 0.0.15] ||[https://en.wikipedia.org/wiki/Osiris Osiris] ||2013-12-25\\''+112d'' ||r14386 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=14386&stop_rev=13797&limit=999&verbose=on link]\\''+590'' ||[query:?milestone=Alpha+15&group=component&col=id&col=summary&col=owner&order=priority link]\\''+117'' ||Ptolemies added, multiplayer lobby, auras ||
||[https://wildfiregames.com/forum/index.php?/topic/17557-new-release-alpha-14-naukratis-indiegogo-fundraiser/ 0.0.14] ||[https://en.wikipedia.org/wiki/Naucratis Naukratis] ||2013-09-05\\''+165d'' ||r13796 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=13796&stop_rev=13333&limit=999&verbose=on link]\\''+464'' ||[query:?milestone=Alpha+14&group=component&col=id&col=summary&col=owner&order=priority link]\\''+104'' ||blacksmiths, infinite farms, exponential armour ||
||[https://wildfiregames.com/forum/index.php?/topic/17189-new-release-0-ad-alpha-13-magadha/ 0.0.13] ||[https://en.wikipedia.org/wiki/Magadha_Kingdom Magadha] ||2013-04-03\\''+109d'' ||r13332 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=13332&stop_rev=12996&limit=999&verbose=on link]\\''+337'' ||[query:?milestone=Alpha+13&group=component&col=id&col=summary&col=owner&order=priority link]\\''+70'' ||Mauryans added, AI difficulty levels, new music tracks ||
||[https://wildfiregames.com/forum/index.php?/topic/16864-new-release-0-ad-alpha-12-loucetios/#comment-258414 0.0.12] ||[https://en.wikipedia.org/wiki/Loucetios Loucetios] ||2012-12-16\\''+101d'' ||r12995 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=12995&stop_rev=12637&limit=999&verbose=on link]\\''+359'' ||[query:?milestone=Alpha+12&group=component&col=id&col=summary&col=owner&order=priority link]\\''+73'' ||+5 maps; +1 track; **diplomacy**; **heroes** return; formation **order queueing**; unit **training hotkeys**; siege engine packing; slaughter attack; new match setup options; rubble; post-proc manager ||
||[https://wildfiregames.com/forum/index.php?/topic/16513-new-release-0-ad-alpha-11-kronos/ 0.0.11] ||[https://en.wikipedia.org/wiki/Cronus Kronos] ||2012-09-07\\''+115d'' ||r12636 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=12636&stop_rev=11864&limit=999&verbose=on link]\\''+773'' ||[query:?milestone=Alpha+11&group=component&col=id&col=summary&col=owner&order=priority link]\\''+111'' ||+7 maps; +3 tracks; Celts→**Britons**/**Gauls**; AegisBot **AI**; shared and smooth **LOS**; team chat; cheats; advanced **rendering** (AO, normal, parallax); gates; new sound system; Atlas heightmap import ||
||[https://wildfiregames.com/forum/index.php?/topic/16051-new-release-0-ad-alpha-10-jhelum/ 0.0.10] ||[https://en.wikipedia.org/wiki/Jhelum_River Jhelum] ||2012-05-16\\''+63d'' ||r11863 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=11863&stop_rev=11340&limit=999&verbose=on link]\\''+524'' ||[query:?milestone=Alpha+10&group=component&col=id&col=summary&col=owner&order=priority link]\\''+79'' ||+2 tracks; +9 maps; Hellenes→**Athenians**/**Macedonians**/**Spartans**; **technologies**; **phases**; click-and-drag walls; healing; specularity; new models ||
||[https://wildfiregames.com/forum/index.php?/topic/15786-new-release-0-ad-alpha-9-ides-of-march/ 0.0.9] ||[https://en.wikipedia.org/wiki/Ides_of_March Ides of March] ||2012-03-15\\''+84d'' ||r11339 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=11339&stop_rev=10804&limit=999&verbose=on link]\\''+536'' ||[query:?milestone=Alpha+9&group=component&col=id&col=summary&col=owner&order=priority link]\\''+68'' ||+4 tracks; **Romans** added; **trading** system; **attack bonuses**; new random maps and animations ||
||[https://wildfiregames.com/forum/index.php?/topic/15422-new-release-0-ad-alpha-8-hax%C4%81mani%C5%A1/ 0.0.8] ||[https://en.wikipedia.org/wiki/Achaemenes Haxāmaniš] ||2011-12-23\\''+98d'' ||r10803 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=10803&stop_rev=10289&limit=999&verbose=on link]\\''+515'' ||[query:?milestone=Alpha+8&group=component&col=id&col=summary&col=owner&order=priority link]\\''+66'' ||+1 map; +3 tracks; **Persians** added; **saved games**; [https://trac.wildfiregames.com/wiki/qBot qBot] **AI**; bartering; **FOV** 20°→45°; multiplayer reconnect; rally points on resources ||
||[https://wildfiregames.com/forum/index.php?/topic/15139-new-release-0-ad-alpha-7-geronium/ 0.0.7] ||[https://en.wikipedia.org/wiki/Battle_of_Geronium Geronium] ||2011-09-17\\''+70d'' ||r10288 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=10288&stop_rev=9787&limit=999&verbose=on link]\\''+502'' ||[query:?milestone=Alpha+7&group=component&col=id&col=summary&col=owner&order=priority link]\\''+56'' ||+5 maps; **Carthaginians** added; **dynamic territories**; new **tracks**, sound effects and menu design ||
||[https://wildfiregames.com/forum/index.php?/topic/14923-new-release-0-ad-alpha-6-fortuna/ 0.0.6] ||[https://en.wikipedia.org/wiki/Fortuna Fortuna] ||2011-07-10\\''+52d'' ||r9786 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=9786&stop_rev=9531&limit=999&verbose=on link]\\''+256'' ||[query:?milestone=Alpha+6&group=component&col=id&col=summary&col=owner&order=priority link]\\''+33'' ||+4 maps; **unit stances**; new **terrain textures**, sound effects and units; more Atlas features with entity filter ||
||[https://wildfiregames.com/forum/index.php?/topic/14739-new-release-alpha-5-edetania/ 0.0.5] ||[https://en.wikipedia.org/wiki/Ll%C3%ADria Edetania] ||2011-05-20\\''+70d'' ||r9530 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=9530&stop_rev=9050&limit=999&verbose=on link]\\''+481'' ||[query:?milestone=Alpha+5&group=component&col=id&col=summary&col=owner&order=priority link]\\''+41'' ||+1 map; **Iberians** added, **random map generator**, JuBot **AI**; unit promotions, silhouettes and control groups; idle villager hotkey/button; new particle system and better lighting ||
||[http://www.moddb.com/games/0-ad/news/new-release-0-ad-alpha-4-daedalus 0.0.4] ||[https://en.wikipedia.org/wiki/Daedalus Daedalus] ||2011-03-12\\''+92d'' ||r9049 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=9049&stop_rev=8833&limit=999&verbose=on link]\\''+217'' ||[query:?milestone=Alpha+4&group=component&col=id&col=summary&col=owner&order=priority link]\\''+41'' ||**AI prototype**; improved **terrain rendering**; improved fog-of-war and animal AI; build limits; new ships and sound effects ||
||[https://wildfiregames.com/forum/index.php?/topic/13999-new-release-0-ad-alpha-3-cerberus/ 0.0.3] ||[https://en.wikipedia.org/wiki/Cerberus Cerberus] ||2010-12-11\\''+54d'' ||r8832 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=8832&stop_rev=8414&limit=999&verbose=on link]\\''+419'' ||[query:?milestone=Alpha+3&group=component&col=id&col=summary&col=owner&order=priority link]\\''+54'' ||+12 and **round maps**; **Greek buildings**; garrisoning; resource shuttling; desert plants; improved pathfinding and UI with **summary screen** ||
||[https://wildfiregames.com/forum/index.php?/topic/13665-new-release-0-ad-alpha-2-bellerophon/ 0.0.2] ||[https://en.wikipedia.org/wiki/Bellerophon Bellerophon] ||2010-10-19\\''+65d'' ||r8413 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=8413&stop_rev=7971&limit=999&verbose=on link]\\''+443'' ||[query:?milestone=Alpha+2&group=component&col=id&col=summary&col=owner&order=priority link]\\''+41'' ||**formations**; **FOW**; **victory conditions**; health bars; pop limit; repair; hunting and fishing; savanna biome; new ingame GUI, Celtic buildings, units, maps and eyecandy ||
||[https://wildfiregames.com/forum/index.php?/topic/13300-new-release-0-ad-alpha-1-argonaut/ 0.0.1] ||[https://en.wikipedia.org/wiki/Argonauts Argonaut] ||2010-08-16\\''+36d'' ||r7970 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=7970&stop_rev=7733&limit=999&verbose=on link]\\''+238'' ||[query:?milestone=Alpha+1&group=component&col=id&col=summary&col=owner&order=priority link]\\''+26'' ||+2 maps; **animal AI**; improved unit AI, UI and Atlas, **in-game chat**; floating objects; building collapse; corpse decay; **rally points**; order queues; Windows installer and Linux packages ||

== Pre-Alpha ==
''Pre-alpha refers to all activities performed during the software project before testing. These activities can include requirements analysis, software design, software development, and unit testing. In typical open source development, there are several types of pre-alpha versions. Milestone versions include specific sets of functions and are released as soon as the functionality is complete.'' [ [https://en.wikipedia.org/wiki/Software_release_life_cycle#Pre-alpha Wikipedia] ]

The **0 A.D.** pre-alpha versions are not playable and only meant for developers.

||=Version =||=Codename =||=Release Date =||=Last Commit =||=Changelog =||=Revisions =||=Tickets =||=Highlights =||
||[https://wildfiregames.com/forum/index.php?/topic/13201-0-ad-pre-alpha-3-released/ pre3] || ||2010-07-11\\''+60d'' ||r7732 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=7732&stop_rev=7540&limit=999&verbose=on link]\\''+193'' ||[query:?milestone=Pre-Alpha+3&group=component&col=id&col=summary&col=owner&order=priority link]\\''+2'' ||**multiplayer**; improved **GUI**, **pathfinding** and shadows; ambient sounds; actor XML hotloading ||
||[https://wildfiregames.com/forum/index.php?/topic/13078-0-ad-pre-alpha-2-released/ pre2] || ||2010-05-12\\''+40d'' ||r7539 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=7539&stop_rev=7420&limit=999&verbose=on link]\\''+120'' ||[query:?milestone=Pre-Alpha+2&group=component&col=id&col=summary&col=owner&order=priority link]\\''+8'' ||new **pathfinding** system; **training queues**; **dynamic minimap**; audio integration with gameplay ||
||[https://wildfiregames.com/forum/index.php?/topic/12974-0-ad-debuts-pre-alpha-version/ pre1] || ||2010-04-02 ||r7419 || ||[http://trac.wildfiregames.com/log?action=stop_on_copy&mode=follow_copy&rev=7419&stop_rev=6944&limit=999&verbose=on link] ||[query:?milestone=Pre-Alpha+1&group=component&col=id&col=summary&col=owner&order=priority link]\\''+23'' ||1^st^ **prebuilt Windows** and **Linux** version ||

== Charts ==

[[Image(0ad-dev-time.png)]]
[[Image(0ad-dev-pace.png)]]