Sourced from xterm's releases.

5.1.0

🚀 Features

Multiple texture atlas page support (#4244, #4252, #4274) via @​Tyriar

Instead of there being a hard cap of 1024x1024 on the size of the texture atlas backing the canvas and webgl renderers, multiple textures are now supported. Each individual texture is now 512x512 which allows faster uploading to the GPU and will continually merge until the maximum of 4096x4096 is reached.

The benefits in simple terms of this change are:

• Less time from drawing a glyph to rendering it
• Less CPU is used when lots of glyphs are used
• Essentially unlimited space for glyphs, which is good for certain use cases but will also let us explore things like "perfect" dotted and curvy underlines in the future

Here is an example of a 512x512 texture atlas page right after the terminal has loaded and printed a powerline-based prompt:

And here is the 1024x1024 page after a lot of glyphs have rendered:

Slash and triangle custom glyphs (#4313) via @​Tyriar

Eight new powerline extra custom glyphs are supported:

New option scrollOnUserInput (#4289) via @​JasonXJ

You can now specify whether to scroll to the bottom of the terminal on user input, previously this was the default and only behavior. This new setting is enabled by default.

const term = new Terminal({ scrollOnUserInput: false });

🐞 Bug fixes

• Fix width of upper 1/8 block character (#4134) via @​Tyriar
• Allow the renderer to be set before Terminal.open is called (#4151) via @​Tyriar
• Fix trusted types in dom renderer (#4157) via @​Tyriar
• Fix several memory retention issues (#4185) via @​Tyriar
• Remove check proposed api checks (#4204) via @​silamon
• Clear the extended attribute on CSI 0 m via @​JasonXJ
• Fix clipping of italic emoji (#4237) via @​Tyriar
• Fix some edge cases in screenReaderMode (#4284) via @​JasonXJ
• Send corresponding escape code for alt+space and ctrl+alt+space (#4290) via @​JasonXJ
• Re-evaluate the link under the cursor instead dropping it completely when the terminal buffer changes (#4298) via @​jerch

🏎️ Performance

... (truncated)

• 19c760a Merge pull request #4333 from xtermjs/revert-4196-ansiheadless
• 3a81ef5 Revert "SerializeAsHTML(): Fallback to default ansi colors when running headl...
• 6cfdcb1 Merge pull request #4332 from Tyriar/r5_1_0
• 30ef1fc v5.1.0
• 84b8121 Merge pull request #4288 from jerch/fix_weblinks
• 218cfd2 Merge branch 'master' into fix_weblinks
• 1757f27 explicit type for link test data
• 9411acb move link tests to demo
• cb4102c Merge pull request #4330 from Tyriar/2533
• 1926c9b Add sequence buttons through CSI P
• Additional commits viewable in compare view

• 0997f43 Proper event handling
• e278837 Fix focus on refresh
• See full diff in compare view

• 9bd2a1c Implemented the attach addon
• c7f4658 Add fullscreen mode plug in
• 96848a6 Improved textarea handling
• 0997f43 Proper event handling
• See full diff in compare view

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)