The version 124.2 started as another bugfix as there were many annoying bugs even in the 124.1. However, some additional change elevates this beyond a patch. Most are GUI improvements, like saving the windows now even with network games. The most dramatic change for a user is the new way builder. If a new way starts one tile from an existing way and ends one tile from an existing way, it will now try very hard to make a parallel track. It works as good as it can do without terraforming. It may still join at a place where it cannot pass next to it but then go parallel again, greatly saving efforts (especially with diagonals).
This release is built from svn revision number 11351.
Installer for Windows
MS Windows with an existing install should use the Online-Installer (Admin) (http://sourceforge.net/projects/simutrans/files/simutrans/simutrans-online-install.exe/download).
New users can use the no-admin version too
Online-Installer (local user) (http://sourceforge.net/projects/simutrans/files/simutrans/simutrans-online-install-noadmin.exe/download).
The pak files will be stored in both cases in ProgramData, i.e. only once per computer. The admin installer will move the paks there before installing any new ones or updating the exisiting paks.
Android users should be able to get it from the Google play store.
Those versions support IPv6 on Windows. As a result, it will not run on any Windows OS below XP.
If you want to download manually, you will need an executable and a pak set.
Executables
http://sourceforge.net/projects/simutrans/files/simutrans/124-2/
Windows (SDL2) (http://sourceforge.net/projects/simutrans/files/simutrans/124-2/simuwin-sdl-124-2.zip/download)
Windows (SDL2) 64 bit for maps larger than 2.5 GB (https://sourceforge.net/projects/simutrans/files/simutrans/124-2/simuwin-x64-sdl-124-2.zip/download)
Windows (GDI) (http://sourceforge.net/projects/simutrans/files/simutrans/124-2/simuwin-124-2.zip/download)
Windows (GDI) 64 bit for maps larger than 2.5 GB (http://sourceforge.net/projects/simutrans/files/simutrans/124-2/simuwin-x64-124-2.zip/download)
64 bit Intel Linux (https://sourceforge.net/projects/simutrans/files/simutrans/124-2/simulinux-x64-124-2.zip/download)
MAC OS (http://sourceforge.net/projects/simutrans/files/simutrans/124-2/simumac-arm-124-2.zip/download)
MAC OS (intel for older Macs) (http://sourceforge.net/projects/simutrans/files/simutrans/124-2/simumac-intel-124-2.zip/download)
PakSets - graphic packages with tutorials
Pak64 124.2
pak64 Basics (http://sourceforge.net/projects/simutrans/files/pak64/124-2/simupak64-124-2.zip/download) (new)
pak64 food chain (http://sourceforge.net/projects/simutrans/files/pak64/120-4/simupak64-addon-food-120-4.zip/download)
Pak128 2.9.1
pak128 (https://sourceforge.net/projects/simutrans/files/pak128/pak128%20for%20ST%20%20124.1up%20%282.9.1%29/simupak128-2.9.1.zip/download)
pak192.Comic V0.71
pak192 Comic (http://downloads.sourceforge.net/project/simutrans/pak192.comic/pak192.comic%20V0.7.1/pak192-comic.zip)
PakSets - graphic packages
Pak64.german 124.0.0.3
pak64 german (https://simutrans-germany.com/pak.german/pak64.german_0-124-0-0-3_full.zip)
pak.Nippon (64 size) 0.62
pak64 Nippon (https://github.com/wa-st/pak-nippon/releases/download/v0.6.2/pak.nippon-v0.6.2.zip)
Pak64.japan 123.0
pak64 japan (http://sourceforge.net/projects/simutrans/files/pak64.japan/123-0/simupak64.japan-123-0.zip/download)
Pak128.german 2.2
Pak128 German (http://downloads.sourceforge.net/project/simutrans/PAK128.german/PAK128.german_2.2_for_ST_124.0/PAK128.german_2.2_for_ST_124.0.zip)
Pak128.CZ
Pak128 CS (http://downloads.sourceforge.net/project/simutrans/Pak128.CS/nightly%20builds/pak128.CS-r2096.zip)
PakTTD (alpha)
PakTTD (https://sourceforge.net/projects/simutrans/files/pakTTD/simupakTTD-124-0.zip/download)
Pak48.bitlit 0.1c (new)
pak46.bitlit (https://codeberg.org/Nazalassa/pak48.bitlit/releases/download/0.1c/pak48.bitlit_0.1c.zip)
PakSets - graphic packages (unsupported, but still popular)
pak48.excentrique 0.19 rc3
pak4 Excentrique (https://github.com/Varkalandar/pak48.Excentrique/releases/download/v0.19_RC3/pak48.excentrique_v019rc3.zip)
Pak96.comic 0.4.10 extended
pak96 comic (https://sourceforge.net/projects/simutrans/files/pak96.comic/pak96.comic%20for%20111-3/pak96.comic-0.4.10-plus.zip/download)
Pak128.japan 120
pak128 Japan for 120 (http://pak128.jpn.org/souko/pak128.japan.120.0.cab)
Pak128.britain 1.8 for 120.3
pak128 Britain (https://sourceforge.net/projects/simutrans/files/pak128.britain/pak128.Britain%20for%20120-3/pak128.Britain.1.18-120-3.zip/download)
PakSets - graphic packages (outdated, but may still run)
Pak32.comic 102.0
pak32 comic (http://downloads.sourceforge.net/project/simutrans/pak32.comic/pak32.comic%20for%20102-0/pak32.comic_102-0.zip/download)
pak64 SciFi 0.2
pak64 SciFi (http://sourceforge.net/projects/simutrans/files/pak64.scifi/pak64.scifi_112.x_v0.2.zip/download)
Pak64.contrast 102.2
pak64 contrast (http://downloads.sourceforge.net/project/simutrans/pak64.contrast/pak64.Contrast_910.zip)
Pak96.HD 0.4
pak96 HD (https://hd.simutrans.com/release/PakHD_v04B_100-0.zip)
Makeobj
Makeobj
Makeobj 60.7 (windows) (https://sourceforge.net/projects/simutrans/files/makeobj/60-7%20for%20124-0%20up/makeobj-win-60-7.zip/download)
Makeobj 60.7 (linux) (https://sourceforge.net/projects/simutrans/files/makeobj/60-7%20for%20124-0%20up/makeobj-linux-x64-124-1-60-7.zip/download)
Makeobj 60.7 (MacOS) (https://sourceforge.net/projects/simutrans/files/makeobj/60-7%20for%20124-0%20up/makeobj-macos-arm-124-1-60-7.zip/download)