- Feature: Make building (long) roads work like building rail; build upon the first obstruction instead of failing totally [FS#3318] (r18803)
- Feature: Allow user customisable compression levels for the zlib compression (r18772)
- Feature: [NoAI] Rerandomise AIs on reloading (via the debug window) when they were randomly chosen [FS#3095] (r18763)
- Feature: [NewGRF] Implement VarAction2Houses variables 66 and 67 (r18736)
- Change: [SDL/Allegro] Make the number of samples/frequency runtime configurable (r18821, r18820)
- Change: Be consistent with airport naming [FS#3493] (r18819)
- Change: [NewGRF] Consider callback 19 only broken after subcargos 0 to 255 have been used, instead of stopping at 15 (r18774)
- Change: Replace MiniLZO with the real library (r18769)
- Fix: Town noise population settings could not be changed in-game [FS#3532] (r18864)
- Fix: Do not pass AI strings through iconv [FS#3544] (r18862)
- Fix: Do not do screen redraw when the landscape contains broken slopes [FS#3540] (r18850)
- Fix: Default-waypoint was drawn incorrectly for monorail and maglev in the waypoint picker (r18841)
- Fix: In some cases error messages were not properly sent to the client before closing the connection. As a result the client would say 'connection lost' when the cause was something completely different (r18801)
- Fix: In some cases with invalid packets one can crash OpenTTD (r18800)
- Fix: [SDL] Possible deadlock when killing OpenTTD while starting it [FS#3521] (r18796)
- Fix: When copying an 'image' back into the buffer the 32bpp anim blitter triggered palette check of the whole window instead of only the part the got copied back [FS#3504] (r18791)
- Fix: Viewport could jump under high CPU load [FS#3515] (r18790)
- Fix: Crash when getting the tooltip of the industry amount in the world generation window [FS#3516] (r18787)
- Fix: [NoAI] NoAI's custom implementation of DoCommandP has several flaws (not masking of bits, not resetting town authority updates on checks/estimates, ...). Let it use DoCommandPInternal, DoCommandP without showing error messages and such, instead [FS#3507] (r18786)
- Fix: [NoAI] AIs did update their last cost incorrectly in network games if the cost of the DC_EXEC phase differed from the ~DC_EXEC phase (r18781)
- Fix: [YAPP] Remove a special check for two-sided signals when reserving a path as this causes trains to get stuck in front of them [FS#3483] (r18778)
- Fix: Assertions because the unloading and signal wait counter got into eachother's way [FS#3422] (r18764)
- Fix: [NewGRF] Spritelayouts do not need an Action 1 if only using default sprites [FS#3497] (r18761)
- Fix: [NewGRF] Action 9 did not properly detect whether an Action 8 was encountered already [FS#3500] (r18760)
- Fix: [NewGRF] Do not segfault when a NewGRF contains an Action 2 and Action 3 but no Action 0 (r18759)
- Fix: [NewGRF] CircularTileSearch skipped a few tiles close to the starting tile, as a result some NewGRF houses could be placed too close together [FS#3495] (r18755)
- Fix: The cargo payment button states were not properly set on opening the window [FS#3492] (r18750)
- Fix: [NoAI] The AI's name and version in the debug panel was not properly centered [FS#3491] (r18749)
- Fix: Clear the cached NewGRFs of a server when receiving a reply instead of when requesting the information. With slow/unstable network connections it would look like the NewGRF settings button went randomly missing [FS#3489] (r18746)
- Fix: Do not toggle the sticky- and shading-button twice per mouseclick when clicking fast [FS#3487] (r18744)
- Fix: [NewGRF] House prop 1D was trashed when a NewGRF contains prop 14 after prop 1D (r18742)
- Fix: Building trees on snow with rocks underneed caused an assert [FS#3501] (r18739)
- Fix: When a tree died while there was snow the amount of snow on the tile changed (r18738)
- Fix: [NewGRF] VarAction2Station variable 67 was not swapped properly for orientation (r18737)