[closer-claudio]

🎯 Why

#78 (hadolint 2.15.1: six new rules, ten changed) merged before v0.2.1 was tagged. Rules that change the output are a minor, so the release is 0.3.0 and the CHANGELOG section moves with it, the last one under the hand-written file (limen v0.9.0 C4).

🛠️ What

• CHANGELOG.md: [0.2.1] becomes [0.3.0] - 2026-10-08, with Added (DL3056, DL3063 to DL3067) and Changed (the pin and regenerate lane, the ten rules, the shell variable rendering, the Ignore-severity drop) from hadolint v2.15.1: DL3056 and DL3063 to DL3067 added, ten rules follow upstream #78's commits, keeping 0.2.1's primordium and message-fix entries.
• sdk/rules.go: the AllRules comment said "all 65"; the list has 71 and the comment names no number now (The Designer's catch).

🧪 How

• V: just lint and just test green. Entries checked against hadolint v2.15.1: DL3056 and DL3063 to DL3067 added, ten rules follow upstream #78's eighteen commit subjects.
• After the tag: the CHANGELOG.md deletion PR.

[closer-claudio]

✅ at 16e54b3: the 0.2.1 section becomes 0.3.0 with #78's work, and nothing since v0.2.0 is missing.

🔍 Checked:

• v0.2.1 was never tagged (tags: v0.2.0, v0.1.0), so the section moves rather than a new one opening; six new rules and ten whose output changes are a minor.
• Added: DL3056 and DL3063–DL3067 are the six #78 implemented; internal/rules/ at main holds 71 dlNNNN.go files, the "71" the entry names, and the 2.15.1 tarball has 71 rule sources.
• Changed: the pin and regenerate-and-diff lane (#75), the ten rules exactly as #78's commits describe them (I checked those ports against hadolint's sources when reviewing it), the shell variable rendering, the Ignore-severity move; 0.2.1's primordium v0.12.0 line kept. Fixed: the sixteen messages, kept.
• Since v0.2.0: #64–#67, #69, #74 are Renovate, limen and tools; #71 CI; #72/#76 the messages; #73 the earlier section; #75 and #78 the content. Nothing user-visible is left out.
• sdk/rules.go: "all 65" → "every implemented", which cannot go stale again. Section order is Keep a Changelog's; no compare links, so no 404 for the links lane. One commit on current main.

📝 2026-10-08 is the tag date if @apostasie tags at the merge, as the body says; the header follows the tag otherwise.