Got it, what @ksj8ak2 said (1.55) plus this (= 1.55A):

Latest changes on Experimental 09/08:

Fixed an issue that prevented pre-NEXT saves from accessing the Base Computer Archive missions
Fixed an issue where some non-existent base parts were showing in the Guide
Fixed an issue that made melee boost jumping overly hard to do
Made further adjustments to the farming timers. Note: plant timers have been on real-world rather than in-game time since the launch of NEXT, and these adjustments are in response to that.

About an hour ago 1.55C was released on GOG experimental and 1.55A withdrawn. So far no release notes not even in Steam discussions.

Latest changes on Experimental (15/08):

- Fixed an issue that prevented planets from being added to the Discovery timeline when exiting certain ship models
- Fixed an issue that prevented players from using the Pulse Engine to escape between waves of Sentinel space fighters

- Fixed an issue that could cause base NPC workers to become unresponsive after moving / deleting your base
- Substantially increased the length of time fuel lasts in the hydroponic trays

- Fixed a crash related to creatures
- Fixed a crash related to terrain generation
- Fix for an issue with PC shader compilation when the game is first booted which would occasionally result in a crash
- Various performance improvements
- Various improvements to load times (approximately 5-10% improvement to Warp times, 30% improvement to initial game load)
- Fix to shader generation to boost performance on lower spec PCs

- Fixed an issue that incorrectly limited the number of storage containers that could be built on the freighter
- Fixed an issue that could prevent construction in the freighter base
- Fixed an issue that could cause the 'Nearby buildings' scan on the signal booster to fail

- Fixed an issue that prevented exploration-focussed frigates from charging their scanners
- Fixed an issue that prevented damaged frigates from being completely repaired

- Fixed an issue where players could start their game in inappropriate systems when starting in multiplayer

- Marked icons are now automatically cleared on arrival at the marked target
- Fixed a number of cases where the HUD would prompt to mark icons that did not need marking

- Improved target locking for ship PvP
- Improved the appearance of HUD markers on player ships
- Fixed a number of visual issues around using the Analyser Visor in very specific circumstances

- Improved the mapping of the Steam Controller

- Removed an obsolete building product from the blueprint analyser
- Combat music now triggers when fighting biological horrors
- Slightly increased the damage dealt by biological horrors
- Fixed an issue that could cause expedition rewards to artificially increase after save/loading
- Fixed an issue where the Personal Forcefield could be deployed on 0% charge
- Fixed an issue where the Mining Beam and other weapon effects displayed the wrong colour in multiplayer
- Fixed an issue where the screen on the Multi-Tool would display the wrong ammo count for the Blaze Javelin
- Fixed an issue where the Multi-Tool was invisible in Photo Mode
- Fixed an issue where the Personal Forcefield would remain in-world forever when cycling Alt Weapon modes
- Fixed an issue where meleeing while sprinting could cause an animation glitch

- Improved the appearance of clouds in 4K/1440p modes
- Visual improvements made to some exotic biomes
- Visual improvements made to the space station technology merchants
- Increased the visibility of underground toxic hazards
- Visual improvements to buried technology modules

https://steamcommunity.com/app/275850/discussions/0/1736588252368066560/

That would have been interesting before they nerfed the price on the horror eggs; when ppl still bothered to collect them :P

Yep, what the point unless you're an adrenalin junkie? Too much risk for no real reward!

Experimental 1.58A 24/08/2018

(quote)

Hello everyone,

We are continuing to address the highest priority issues reported by the community. As always, thank you for playing the game and taking the time to report any issues you encounter!

Please note that due to the large number of changes in this patch, especially the fixes for save game recovery, there is always the possibility it may introduce new issues that haven't been caught in test. We'd like to recommend that all players back up their save files, by making a local copy of the st_[userid] folder found here: %appdata%\HelloGames\NMS\

Note that we don't anticipate any issues here. However, performing your own backups could mean the difference between resuming play immediately, or waiting for the next patch.

Feedback and reports of new bugs/issues being found on Experimental are welcome, so please post them here, or submit a ticket to Zendesk[hellogames.zendesk.com] with the phrase "Steam Experimental 24/08" in the ticket title.

To play in Experimental, right-click on No Man's Sky from the Steam library page and select "Properties". Among the available tabs will be the "BETAS" tab. Select "Code: 3xperimental" in the dropdown menu under "Select the beta you would like to opt into".

Latest changes on Experimental (24/08):
Added user permissions for multiplayer, on a per-save slot basis. Settings for visibility, damage + base editing can be customised to apply to all players, friends only, or no-one.
Improved the terrain edit saving system, reducing the chance of terrain regenerating. Further improvements to this system are in progress.
Improved the visuals of player starship trails.
Added archaeology missions to the available pool of missions from planetary NPCs.

Fixed an issue that could prevent players with very large save games from saving.
Fixed a number of issues that prevented save games from loading.
Fixed an issue that incorrectly synced information in multiplayer.
Fixed a number of issues that could cause mission markers to be attached to the wrong destination.
Fixed a number of issues around the refiner and general inventory systems. Improved the pick and drop system of inventory management.

Fixed an issue that caused visual glitches in clouds at higher resolutions.
Fixed occasional crash in geometry streaming when exiting planet atmosphere.
Fixed issue where cloud shadows would interfere with reflection rendering.
Improved consistency between tessellated and non-tessellated terrains.
Improved performance when leaving planets.
Various memory savings, improving overall stability.
Various performance optimisations.

Fixed an issue that could prevent players from going through black holes.
Fixed an issue where players were able to warp and get stuck on the other side of a portal.
Fixed an issue where players were able to enter their freighter base when it was not loaded in memory.
Fixed an issue where players could start their game in inappropriate systems when starting in multiplayer.
Fixed an issue that could cause vast numbers of Sentinel Drones to spawn.
Fixed an issue that prevented players with pre-NEXT saves from fully upgrading their Exosuit.
Fixed an issue where freighter crew would change race on warp.
Fixed an issue where player ships could spawn on the same landing pad in multiplayer.
Fixed a number of cases where freighter battles were not correctly synced in multiplayer.
Fixed an issue where players were not able to land on other player's freighters.
Fixed a number of issues affecting the interaction with captains of freighters not owned by the player.
Fixed an issue that caused expedition length, difficulty + rewards to scale incorrectly relative to the power of the player's fleet.
Fixed an issue that caused players to exit their ships / exocraft while tagging a marker.
Fixed an issue where ships landed on freighters to be labelled ON PLANET.
Fixed an issue that caused player ships to have incorrect information when viewed through the Analysis Visor.
Fixed an issue that could cause Sentinels to appear as undiscovered creatures when viewed through the Analysis Visor.
Fixed the axes used to calculate planet coordinates shown on the Analysis Visor.
Prevented players with freighters from warping other players in multiplayer to systems they would get stuck in.
Fixed an issue where the freighter dock lights were not correctly lit/unlit when a save was loaded on a freighter.
Various text fixes.

Thank you,

Hello Games

See this thread for info on how to get the Experimental versions through GOG Galaxy:

https://www.gog.com/forum/no_mans_sky/gog_galaxy_offers_a_specific_beta_channel_for_developers

Read the posts in the thread because there's an important point I didn't know about that HG highlights...! It's very easy and even uses the same password as Steam.

Version 1.58 is now final. Are there differences between the experimetal version and the final version?

Translated with Google.

https://www.nomanssky.com/

As of now, HG has not listed the official update list for 1.58 on the above site.

Someone on Steam found this webpage and a reader has to scroll down to get to those.

https://www.nomanssky.com/2018/08/development-update-3/

Holy shit, a 19gb patch, looks like more than bug fixes!

Special build for Vulcans. The rest of us only got about 180 MB or so. ;-)

Lol, my mistake, it seems that my DOS2 got an update as well... Oh, and my avatar's an anime gogol 13 dunmer (TES dark elf) that someone made for me! ;^)

GoG has now released a '1.58d' patch but no updated changelog since 1.54.

The webpage link above lists all important changes and fixes, EXCEPT 1 very important:

Savegames from 1.57 and before, also your old saves from previous updates will not work anymore because the save format has changed in 1.58. (I have not verified this personally yet, so please confirm!)

So you better make a whole backup of your save game folder if you ever want to continue with all your progress which AFAIK you have to do in a past update/version of the game. Also I advice to keep these savegame updates and the old version 1.57 and update this one to a version x.xx where it's more stable and the save conversion works without you losing many inventory objects or still having many bugs in the game. Don't do it and you would have to start all over at some point...