Doctype Inserter v1.2.4

Requires WordPress: 5.8
Requires PHP: 7.4

• Fix the WordPress Check again path so the plugin's release metadata cache is cleared before WordPress performs its plugin update check.
• Clear WordPress's own plugin-update transient on an explicit manual refresh, ensuring a newly published GitHub release is actually fetched immediately.

Doctype Inserter v1.2.3

Requires WordPress: 5.8
Requires PHP: 7.4

• Preserve source-like Simple comment text, including HTML-looking examples, percent-encoded URLs, dollar signs, backslashes and line breaks.
• Validate text encoding and remove NUL bytes instead of using WordPress's generic textarea sanitizer, which strips or rewrites some harmless source-message content.
• Extend real WordPress and HTTP integration tests to verify exact persistence and output.

Doctype Inserter v1.2.2

Requires WordPress: 5.8
Requires PHP: 7.4

• Fix the first switch from a legacy Advanced snippet to Simple comment mode on upgraded installations.
• Preserve ordinary double hyphens in Simple comment mode.
• Neutralize only HTML comment delimiter sequences that would make the generated comment non-conforming.
• Exercise Simple mode, its permissions, upgrade persistence and the output toggle in real WordPress/HTTP integration tests.

Doctype Inserter v1.2.1

Requires WordPress: 5.8
Requires PHP: 7.4

• Restore the complete GNU GPL v2 license text in LICENSE.
• Add a packaging guard so an empty or truncated license cannot be shipped again.
• No runtime behavior changes from 1.2.0.

Doctype Inserter v1.2.0

Requires WordPress: 5.8
Requires PHP: 7.4

• Add a Simple comment mode that turns plain text into a safe HTML comment after the doctype.
• Keep existing 1.0/1.1 snippets unchanged and automatically select Advanced mode for upgraded installations.
• Add a live escaped source preview and optional templates for website credits, hiring and developer greetings.
• Add an enable/disable switch that pauses output without deleting saved content.
• Add an on-demand home-page output check to help diagnose page caches and HTML minification.
• Add project/help links, Cem Firat author metadata, and GPL-2.0-or-later license metadata and file.
• Keep the bounded streaming output engine and GitHub update behavior from 1.1.

Doctype Inserter v1.1.0

Requires WordPress: 5.8
Requires PHP: 7.4

• Use English throughout the settings, plugin metadata, messages and documentation.
• Preserve snippets exactly, including $1, backslashes and the string 0.
• Require both manage_options and unfiltered_html when saving raw snippets; retain the previous value on invalid submissions.
• Escape snippets in the editor and preserve the Settings API nonce protection.
• Skip non-HTML requests and responses, downloads, redirects and fixed-length or encoded output.
• Stream output after finding the document doctype; limit preamble inspection to 64 KiB and handle doctypes split across flushes.
• Preserve the existing doctype_inserter_text option.
• Discover stable GitHub releases through the native WordPress update mechanism with cached metadata, safe failure handling and a version details dialog.
• Keep the installed plugin folder during updates, including custom folder names.
• Add automated regression checks, WordPress integration tests and reproducible release ZIPs.

Version 1.0 needs one manual upgrade because it does not contain an update client.