News in 5.5.1, 2022-08-05
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 * Many fixes to GtkSourceSnippet parsing and expaction
 * Various test-suite fixes
 * The snippet completion provider now avoids inflating snippet objects
   until they are inserted.
 * Input-method integration improvements for custom indenters
 * Performance improvements to GtkSourceBuffer
 * Performance improvements when translating improperly encoded
   documents to fallback hexadecimal characters
 * Disable GtkSourceBuffer::cursor-moved signal while loading
   buffers with GtkSourceFileLoader
 * Adwaita.xml styling fixes for def:error
 * More profiling integration with sysprof
 * Updated languages: lean, latex, chdr, cpphdr
 * Translation updates

This is a development release snapshot not intended for end-users.