http://store.steampowered.com/app/730260/OMSI_2_Addon_Hamburger_Buspaket/
The new vehicle expansion "Hamburg Buses" adds three of Hamburg’s city buses from the latest 2017 generation to OMSI. This includes the 21 metre long large-capacity articulated bus with 4 axles as well as the solo and articulated variants with 12 and 13 metres, respectively.The buses were optimised for use on the HafenCity map, supporting the special rerouting plans and special announcements.

http://store.steampowered.com/app/730260/OMSI_2_Addon_Hamburger_Buspaket/
The new vehicle expansion "Hamburg Buses" adds three of Hamburg’s city buses from the latest 2017 generation to OMSI. This includes the 21 metre long large-capacity articulated bus with 4 axles as well as the solo and articulated variants with 12 and 13 metres, respectively.The buses were optimised for use on the HafenCity map, supporting the special rerouting plans and special announcements.

http://store.steampowered.com/app/708173/OMSI_2_Addon_BremenNord/

• New: Announcement "Bf Turnerstraße" & "Buschdeel" (modern)
  
• New: Special announcement 2 & 7 (modern)
  
• New: Bus flags will now be displayed for free market time (13.10.18 - 29.10.18)
  
• Fix: Blinker speed changed
  
• Fix: VDV display (door error)
  
• Update: Indoor & BOB Advertising

http://store.steampowered.com/app/708173/OMSI_2_Addon_BremenNord/

• New: Announcement "Bf Turnerstraße" & "Buschdeel" (modern)
  
• New: Special announcement 2 & 7 (modern)
  
• New: Bus flags will now be displayed for free market time (13.10.18 - 29.10.18)
  
• Fix: Blinker speed changed
  
• Fix: VDV display (door error)
  
• Update: Indoor & BOB Advertising

http://store.steampowered.com/app/434066/OMSI_2_AddOn_MAN_Citybus_Series/

Bugfixes:

• destination display: Error MAN NÜ fixed
  
• doors: Doorswitches for the driver (door 1) is now working correctly on all vehicles
  
• drivetrain: ASR/ABS problem fixed (no acceleration and red ASR/ABS warning light)
  
• scripts: articulated-AI now working properly
  
• scripts: AI script routines reworked for all vehicles
  
• scripts: door script routines reworked for all vehicles; included the 3rd and 4th door
  
• heater: modified and reworked sounds and scripts
  
• sounds: some fixes and additions for the 3rd and 4th door and the heater routines
  
• model: material assignment of the door opener buttons modified (they are now lit correctly by the dynamic interior lights)

New:

• BUS: 4-door NG313
  
• dedicated AI: 4-door NG313
  
• BUS: 3-door NL263
  
• dedicated AI: 3-door NL263
  
• feature: manual doors on all vehicles now available
  
• new CTI: vis_doortype_gh (4th door NG313)
  
• new CTI: vis_doortype_h (3rd door NL263)
  
• new CTI: var_doorusage has now option "2" - manual doors

http://store.steampowered.com/app/434066/OMSI_2_AddOn_MAN_Citybus_Series/

Bugfixes:

• destination display: Error MAN NÜ fixed
  
• doors: Doorswitches for the driver (door 1) is now working correctly on all vehicles
  
• drivetrain: ASR/ABS problem fixed (no acceleration and red ASR/ABS warning light)
  
• scripts: articulated-AI now working properly
  
• scripts: AI script routines reworked for all vehicles
  
• scripts: door script routines reworked for all vehicles; included the 3rd and 4th door
  
• heater: modified and reworked sounds and scripts
  
• sounds: some fixes and additions for the 3rd and 4th door and the heater routines
  
• model: material assignment of the door opener buttons modified (they are now lit correctly by the dynamic interior lights)

New:

• BUS: 4-door NG313
  
• dedicated AI: 4-door NG313
  
• BUS: 3-door NL263
  
• dedicated AI: 3-door NL263
  
• feature: manual doors on all vehicles now available
  
• new CTI: vis_doortype_gh (4th door NG313)
  
• new CTI: vis_doortype_h (3rd door NL263)
  
• new CTI: var_doorusage has now option "2" - manual doors

http://store.steampowered.com/app/434067/OMSI_2_AddOn_Aachen/

• New vehicle variants
  - O 530 and O 530 G as used by a contract company
  - O 530 LE in two variants
  
• Model improvements on the vehicles (Attention, changed exterior texture in the spotlight area!)
  
• Various neutral vehicle repaints
  
• Script adjustments (including heating system)
  
• New AI vehicle
  
• N4 direction Elisenbrunnen goes directly from Vaals border to Philipp-Neri-Weg
  
• Various adjustments at the route (including height profile of Oppenhoffallee)

http://store.steampowered.com/app/434067/OMSI_2_AddOn_Aachen/

• New vehicle variants
  - O 530 and O 530 G as used by a contract company
  - O 530 LE in two variants
  
• Model improvements on the vehicles (Attention, changed exterior texture in the spotlight area!)
  
• Various neutral vehicle repaints
  
• Script adjustments (including heating system)
  
• New AI vehicle
  
• N4 direction Elisenbrunnen goes directly from Vaals border to Philipp-Neri-Weg
  
• Various adjustments at the route (including height profile of Oppenhoffallee)

http://store.steampowered.com/app/689870/OMSI_2_Addon_Downloadpack_Vol_3__KIMenschen/

General:

• Fixed animations for all characters "amble"
  
• Added TicketPack "Bremen-Nord"

New Content:

• English Voiceover for all characters

Woman 1:

• New cloth varieties
  
• Improved face textures
  
• New haircut "Woman 1"

Woman 2:

• Improved face textures

Woman 3:

• New cloth varieties

Man 1:

• New cloth varieties

Man 2:

• New cloth varieties
  
• Improved face textures
  
• Improved t-shirt textures

http://store.steampowered.com/app/689870/OMSI_2_Addon_Downloadpack_Vol_3__KIMenschen/

General:

• Fixed animations for all characters "amble"
  
• Added TicketPack "Bremen-Nord"

New Content:

• English Voiceover for all characters

Woman 1:

• New cloth varieties
  
• Improved face textures
  
• New haircut "Woman 1"

Woman 2:

• Improved face textures

Woman 3:

• New cloth varieties

Man 1:

• New cloth varieties

Man 2:

• New cloth varieties
  
• Improved face textures
  
• Improved t-shirt textures