Version 1.1.11 makes the following changes:

- Added 1x1, 2x2, 3x2, 3x3, 4x3, 4x4 and 5x5 reinforced storage bays to the tech tree. Build using Hardened Steel, these storages are similar to the standard storage bays, but are 10% lighter and harder to damage or destroy. They are not as strong as real armor though.
These have a single unlock, so unlocking the reinforced storages will unlock them all at once.

Other edits
- Fixed some miscellaneous bugs here and there.

Version 1.1.10 adds the following:

- Added the Advanced Hyperium Powered Fighter Cockpit
- Added the Advanced Cockpit
- Added the Advanced Control Room
- Added the Advanced Bridge

Some balance changes to the tech tree for the Nuclear Powered Bridge and the Nuclear Powered Control Room:
- To unlock the Nuclear Powered Bridge, the standard Bridge also needs to be unlocked. Now the Nuclear Powered Bridge needs the standard Bridge and the Nuclear Powered Control Room to unlock.
- To unlock the Nuclear Powered Control Room, the standard Control Room now also needs to be unlocked. Now the Nuclear Powered Control Room requires the Control Room and the Hypercoil Factory to be unlocked.
- The Hyperium Powered Fighter Cockpit now no longer requires the Steel Smelter to be unlocked first.

- Fixed some minor graphics issues, including for the 5x5 storage when damaged.

Version 1.1.9 adds the following:

- Added the Advanced Large Sensor Array

- Some balance changes to the large and advanced sensor arrays.

- Improved some statistics for all nuclear powered thrusters and advanced nuclear powered thrusters, so they will now correctly show no increase in required crewmembers, as nuclear powered thrusters need none.

Version 1.1.8 adds the following:

- Adds the Hyperium Fueled Small Reactor. It produces standard batteries, but at a much lower rate. It costs hyperium instead of enriched uranium and it doesn't blow up as violently when destroyed.

- Fixed the blueprint icons of the advanced small and large shields and improved some of the other icons.
- Made some further changes to the added weapons to improve compatibility with mods that buff the stats of the standard weapons.

Version 1.1.7 adds the following:

- Adds the Advanced Ion Beam Emitter and Advanced Ion Beam Prism to the tech tree. These advanced ion beam parts feature increased damage output, more efficient combining of beams, faster turret traverse (for the advanced prism) and somewhat more range. It does cost more power to run.

- Minor tweaks, improvements and textual description improvements.

Version 1.1.6a is a minor patch aimed at fixing a graphics bug for the 5x5 storage.

No gameplay changes were made.

Version 1.1.6 adds the following:

- Adds a 1x1 crew quarters for 1 bed, one person, named the Royal Box because it's barely more than a box with a bed and a single door in it, but having a 1x1 space where a crewmember's bunk can be squeezed into is kinda nice.

- Substantially increased compatibility and flexibility for people who prefer to use mods that increase stack size. The default stack sizes of the new resources in this mod will remain unchanged when no stack size mod is used. But if someone does use a mod alongside Extended Tech Tree Mod that increases stack size of the default resources, the stack sizes of the new resources will automatically be increased as well. No more need for a separate mod.

Version 1.1.5a is a minor update:

- Fixed incorrect floor size of the advanced hyperdrive beacon
- Fixed incorrect no power icon location for the hyperium powered fighter cockpit
- Fixed incorrect amount of hp for the advanced tractor beam emitter (it had more than it should have. Now has the same amount as the default tractor beam emitter).
- Some slight tweaks here and there.

Version 1.1.5 summary:

- Added the Large Sensor Array
- Added the Advanced Tractor Beam Emitter
- Added a 5x5 storage
- Added the Advanced Hyperdrive Beacon
- Added the Hyperium Powered Fighter Cockpit

Moved the Advanced Sensor Array deeper into the tech tree as its place as been substituted by the Large Sensor Array.
Fixed the High-Tech Moving Walkway icon. It was using the wrong one by mistake.
Fixed the blueprint icons of the advanced missile launcher, advanced disruptor and advanced ammo storage. They were using the default blueprint icons instead of the advanced ones.
Hyperium Powered Cockpit slightly buffed as the Pilot Cockpit now takes over part of its role as the cheapest cockpit available for ships that don't require a reactor.

Version 1.1.4 makes the following changes:

- Adds the Advanced Sensor Array
- Adds the Advanced Resource Collector

Fixes a graphics glitch affecting the Heavy Armor (the green one made from uranium). Roof paints will no longer be partially visible on this armor set when in build mode.

Made some minor balance adjustments to the spawning of some asteroids.
Adjusted the energy use of the Advanced Mining Laser as I had forgotten to balance this around its other improved traits.
Trimmed a lot of excess files, making the total mod size shrink in size despite having added new content.
Some minor improvements here and there, mostly graphically.