docs(core/bootloader): changelog for 2.1.16
What changed, and why it matters
This commit is purely a documentation update: it generates the official changelog for bootloader version 2.1.16 and moves four pending changelog snippets into the published CHANGELOG.md file. No source code, firmware logic, or security behavior is changed.
No security action required. Treat as routine release documentation.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The commit deletes four .changelog.d fragment files and appends the 2.1.16 release section to core/embed/projects/bootloader/CHANGELOG.md. The listed changes (version build number in Features message, Secure Monitor downgrade protection, version string adjustments, and a T3W1 UI text-position fix) were implemented in earlier commits referenced by pull requests #6225, #6244, #6245, and #6307. This commit only records them; it does not modify any implementation.
Changed components
core/embed/projects/bootloader/CHANGELOG.mdcore/embed/projects/bootloader/.changelog.d/6225.addedcore/embed/projects/bootloader/.changelog.d/6244.addedcore/embed/projects/bootloader/.changelog.d/6245.addedcore/embed/projects/bootloader/.changelog.d/6307.fixedInspect captured patch +14 / −4
diff --git a/core/embed/projects/bootloader/.changelog.d/6225.added b/core/embed/projects/bootloader/.changelog.d/6225.added
deleted file mode 100644
index dde50494..00000000
--- a/core/embed/projects/bootloader/.changelog.d/6225.added
+++ /dev/null
@@ -1 +0,0 @@
-Added version build number to Features message.
diff --git a/core/embed/projects/bootloader/.changelog.d/6244.added b/core/embed/projects/bootloader/.changelog.d/6244.added
deleted file mode 100644
index 83eb7d8d..00000000
--- a/core/embed/projects/bootloader/.changelog.d/6244.added
+++ /dev/null
@@ -1 +0,0 @@
-Introduced Secure Monitor downgrade protection.
diff --git a/core/embed/projects/bootloader/.changelog.d/6245.added b/core/embed/projects/bootloader/.changelog.d/6245.added
deleted file mode 100644
index 11b53bd1..00000000
--- a/core/embed/projects/bootloader/.changelog.d/6245.added
+++ /dev/null
@@ -1 +0,0 @@
-Adjusted version strings to show build version number.
diff --git a/core/embed/projects/bootloader/.changelog.d/6307.fixed b/core/embed/projects/bootloader/.changelog.d/6307.fixed
deleted file mode 100644
index ffc86867..00000000
--- a/core/embed/projects/bootloader/.changelog.d/6307.fixed
+++ /dev/null
@@ -1 +0,0 @@
-[T3W1] Fixed text position on waiting for host screen in bootloader when no menu is shown.
diff --git a/core/embed/projects/bootloader/CHANGELOG.md b/core/embed/projects/bootloader/CHANGELOG.md
index a580ece3..64e5d525 100644
--- a/core/embed/projects/bootloader/CHANGELOG.md
+++ b/core/embed/projects/bootloader/CHANGELOG.md
@@ -4,6 +4,16 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+## 2.1.16 [18th March 2026]
+
+### Added
+- Added version build number to Features message. [#6225]
+- [T3W1] Introduced Secure Monitor downgrade protection. [#6244]
+- Adjusted version strings to show build version number. [#6245]
+
+### Fixed
+- [T3W1] Fixed text position on waiting for host screen in bootloader when no menu is shown. [#6307]
+
## 2.1.15 [19th November 2025]
### Fixed
@@ -229,3 +239,7 @@ Internal only release for Model R prototypes.
[#5993]: https://github.com/trezor/trezor-firmware/pull/5993
[#6019]: https://github.com/trezor/trezor-firmware/pull/6019
[#6023]: https://github.com/trezor/trezor-firmware/pull/6023
+[#6225]: https://github.com/trezor/trezor-firmware/pull/6225
+[#6244]: https://github.com/trezor/trezor-firmware/pull/6244
+[#6245]: https://github.com/trezor/trezor-firmware/pull/6245
+[#6307]: https://github.com/trezor/trezor-firmware/pull/6307
Why this scored 15/100
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