Note the lazy write-back's default on AMD RX 5000 and 6000 cards, the settings-file lines and the fatal summary in the draft release notes, and the new checks in the build guide.

Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>

docs/building.md

@@ -336,6 +336,16 @@ A change to what the library warm logs when the driver's cache of stage librarie
 `runtime/vk_pipeline.c` `lw_main`) passes `python tests\warm_hint_check.py`, which builds the header alone and checks
 the added text by GPU vendor and by why the cache was cold. No game files.
 
+A change to where the lazy write-back is on by default (`runtime/wb_lazy_choice.h`, `runtime/vk_memory.c`
+`vk_mem_lazy_decide`) passes `python tests\wb_lazy_check.py`, which builds the header alone and checks the choice and
+its reason by platform, by GPU driver and by what the player set. No game files, no GPU.
+
+A change to what writes `nx2navi.ini` outside the game (`launcher/gameini.py`, `installer/ini.py`, `tools/make_game.py`,
+`launcher/updater.py`) passes the settings-file tests of `tests\launcher_test.py` (`PlayerIniTest`, and the tests named
+`..._settings_file` of `BackgroundUpdateTest` and `MakeGameTest`): a player's file with lines that are no settings of
+the game comes through an update and a rebuild byte for byte. The game's own writer, the settings menu, is checked by
+`--probe-cfg` with the same lines.
+
 A change to the mouse camera's stick deflection (`runtime/input_map.c` `input_mouse_stick`) passes
 `python tests\mouse_stick_check.py`, which builds that file with the rest of the runtime stubbed and checks the
 deflection at each camera speed: a slow movement is divided by the factor, a fast flick reaches full tilt. No game

docs/releases/v0.7.2.md

@@ -33,3 +33,23 @@ Draft notes for the release after 0.7.1. The version number is not decided yet.
   shader compiler"); with it each NaN test is now made on the bits of the number instead, which no compiler can drop.
   It is on by default only with that driver (`vk_nan_bits`); the first start after the update compiles the pipelines
   again. Untested on those cards before this release: please report whether the blocks are gone.
+- The older installer's last step no longer writes `nx2navi.ini` again as a whole to set the language: it changes the
+  `lang` line and keeps every other byte (it turned Windows line ends into Unix ones and dropped a byte order mark).
+
+## Changed
+
+- **AMD RX 5000 and RX 6000 cards: the faster copy-back of 0.7.1 is off by default again.** 0.7.1 turned it on for
+  every card on Windows (what the game's shaders write is copied back from the video card once, and then only when
+  the game's CPU code touches it). None of us has one of these cards, their Windows driver is a branch of its own,
+  and one report from an RX 6600 lost its video device a few minutes into play with it on. We found no fault in the
+  code and cannot say it was the cause, so until someone has run it there the old copy-back at the end of every GPU
+  submission is the default with that driver; open areas run slower for it, as they did in 0.7.0. `wb_lazy = 1` in
+  `nx2navi.ini` turns it on: if you try it, tell us whether the game stays up, with the log. NVIDIA cards and AMD's
+  RX 7000 and RX 9000 cards keep it on. The log says which is in effect and why ("mem: lazy write-back ...").
+- **A line in `nx2navi.ini` that is no setting of this version is pointed out.** Such a line does nothing; the game
+  only wrote "unknown key" into its log. The log now lists them in one line at the start, beside a line with every
+  setting the file does set, and the settings menu shows them in its bottom row. An update or a rebuild never rewrites
+  `nx2navi.ini`, and the menu keeps such lines when it saves, so nothing has to be added again after an update.
+- When the game ends with a fatal error or a crash, the end of the log names the video card, its driver, the memory
+  mode, whether the lazy write-back was on (with its armed ranges, its fetches so far and one in progress) and the
+  texture detail, so a report that holds only the last lines of a log still says them.