Windows offline installers seem to be ready, Linux is missing. Mac is also missing - the version number misses one digit but the last digit group indicates that it's an old version.

Mac was updated today, 06 December 2019: 1.4.362073756 ⇒ 1.4.2.369858252.
Now only Linux is lagging.

As usual :(

Yes, for linux users buying here is not easy, but we have to support linux and make sure it gets it's updates here too because I am sure before I ever use windows 10 at home I will go for Fedora or Centos with the next PC!

Linux installer updated (09 December 2019): 1.4.1.367430508 ⇒ 1.4.2.

stardew valley 1.4.3 - galaxy only. Version is now 1.4.3.379080781

https://www.stardewvalley.net/1-4-3-bug-fix-patch-for-pc/

Even the Linux version. It's magic.

Patch 1.4.4 is coming, but another patch is coming soon too.

Patch 1.4.4

Update

Why is 1.4.4 not on GOG yet? it's on consoles, mobile & steam already...?

I got it via Galaxy, but seems the offline installer is not available yet.
And I doubt 1.4.4 doesn't include the follow up patch fix.

Any ETA on when the 1.4.4 patch will be available for Linux?

Changelog for Patch 1.4.4 (31 January 2020):

Adjusted dropped item pickups so that they’re more responsive for clients in multiplayer and will “rubber band back” to their previous locations less frequently.
Adjusted item collection code so that machines tucked in corners can be refilled without using cursor mode.
Added Elliott’s 14-heart not properly working in non-English languages.
Fixed a data entry issue that caused some fish ponds to use incorrect data.
Fixed the Shrimp Enthusiast Shirt applying the wrong shirt artwork.
Fixed a softlock when watching the 2nd Fall movie in all non-English languages.
Fixed the cursor not appearing in the level up profession selector if the Controller Style Menus option is toggled off while using a controller.
Unsuccessfully crafting an unstackable item while already holding an item on your cursor no longer grants you credit for crafting it.
Fixed an issue where Garden Pots would consume seeds without planting them if they were planted from more than a tile away.
Fixed the color selector sliders on the Farmhand creation screen having incorrect navigation on controller.
Fixed the logic for fruit tree obstruction checking the wrong tile.
Fixed the dagger swipe sound effect repeating an extra time in multiplayer if another player is in the same area.
Krobus will no longer get jealous if you gift characters you’re dating after he moves in.
Penny now leaves Garden Pots alone in her 14 heart event.
Fixed an issue that could cause Sam’s 6 heart event to soft-lock.
The game now re-issues the player the Qi’s Challenge quest if they had previously opened the mail, but dismissed it without accepting the quest.
Items placed in an ex’s room are now collected and placed in a chest after divorce.
You can no longer give away quest items or non-giftable items during the Feast of the Winter Star.
Adjusted some NPC gift reactions (Vincent and Jas now dislike Triple Shot Espresso, Dwarf now loves Lemon Stone, and Sam now enjoys concession stand Joja Cola.)
Adjusted Desert map so that crab pots placed in the water no longer render incorrectly, and objects can no longer be placed on top of the Desert Trader.
Removed Catfish from Willy’s fishing quests during Winter, as it’s impossible to catch one without a Rain Totem. -Fixed a crash that could occur on the host when a client connects to a game that was set to Friends or Invite Only that is now being hosted on a platform that doesn’t support those online modes.
Fixed incorrectly looping ambient noise in the Deep Woods at night.
Fixed an issue where the Japanese localization’s dialogue for a spouse watering your crops would incorrectly show both gender variants of the text.
Fixed the Simplified Chinese localization incorrectly showing Sunflower Seeds as a Fall only crop.
Removed the ‘<‘ from the Simplified Chinese localization of the “Pet loves you” dialogue.
Fixed an issue where Junimos would show an empty text bubble when bringing a bundle to the Junimo Hut after completing a bundle in Simplified Chinese or Korean.
Fixed an issue where viewing the Junimo Note before learning to read it would cause certain text to permanently display much larger in the Simplified Chinese, Japanese, and Korean localizations
Filled in some missing characters in the Korean fonts. This fixes some instances where an asterisk appears instead of a Korean character.
Fixed a minor typo in Grandpa’s Note in the Korean localization.

Also, the mobile 1.4 update is currently in the process of rolling out to players over the next several days… first with android, and then followed by iOS.

- Windows & Mac standalone installers updated (1.4.3.379080781 ⇒ 1.4.4.422473686): 03 February 2020.
- Linux not updated yet.


EDIT: Linux standalone installer updated (1.4.3.379 ⇒ 1.4.4.425744081): 05 February 2020.

Changelog for Patch 1.4.5 (11 February 2020):

A small patch for PC platforms (1.4.5) that solves the following issues:

- Fixed an issue on Windows where the game would initialize incorrectly and start without audio.
- Fixed an issue where passable objects, such as torches, could block you from attacking enemies that are standing nearby.
- You can now reclaim the Ancient Seed crafting recipe from Gunther if you donated an Ancient Seed artifact and collected only the seed and not the recipe.
- Fixed an issue that would allow animals to walk on certain water tiles alongside some bridges.
- Wallpapers can no longer be used in place of items to be processed into artisan goods.
- Fixed the Lewis statue letter not granting its reward in the Simplified Chinese localization.


Standalone installers updated:
- Windows & Mac: 1.4.4.422473686 ⇒ 1.4.5.433754439.
- Linux: 1.4.4.425744081 ⇒ 1.4.5.433754439.

Stardew valley 1.5

https://www.stardewvalley.net/stardew-valley-1-5-update-full-changelog/

galaxy : 1.5.925530037 - old
Galaxy : 1.5.926075138 - old
Galaxy : 1.5.926257887 - New (no changelog)

offline mac/linux: not live
Windows : 1.5.926257887

1.5.926075138
"1.5 PC: We're aware of a crash if you're playing in a non-english language and open one of the Community Center bundle menus. A hotfix will be coming out soon"