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This release adds a variety of small bugfixes

• Loads bedMethyl as multiquantitativetrack automatically
• Improved/unified behavior of the &highlight= matching the bookmark highlight behavior
• Fixed specification of multi-level synteny views from URL query params (now takes a two dimensional array of string[][], where each pairwise comparison level takes a list of syntenytrack trackIds)
• Add featureHeight param for alignmentstracks in jb2image CLI tool
• Website overhaul! Uses astro instead of docusaurus now
• Standardized discordant pair coloring with IGV based coloring (navy,green

Hi all,

This release fixes the ability to search by gene name using the &loc= URL param since v4, fixes some MM tag parsing errors in BAM/CRAM files, and a couple other misc changes

Important extra note: We are rapidly iterating on a WebGPU/WebGL based accelerated rendering system for JBrowse 2, and are aporoaching a final product.

We are interested to hear from users and model organism database admins interested in beta testing and trying it out. The entire result is a relatively large code change, but we are aiming for minimal breaking changes for end users of the app.

Please contact jbr

Re-release as trusted publishing

Downloads#

• v4.2.0

To install JBrowse 2 for the web, you can download the link above, or you can use the JBrowse CLI to automatically download the latest version. See the JBrowse web quick start for more details.

Changes since v4.1.15 (2026-04-02)#

bug#

• Fix inconsistent sanitization causing broken trix index file paths on desktop (#5540) @cmdcolin

enhancement#

• Create git

Hi all, This is a basic bug fix release

Fixes some small potential bugs

It also tests out using github actions CI to publish the release artifacts

Downloads#

• v4.1.16

To install JBrowse 2 for the web, you can download the link above, or you can use the JBrowse CLI to automatically download the latest version. See the JBrowse web quick start for more details.

Changes since v4.1.15 (2026-04-02)#

bug#

• Fix inconsistent sanitization causing broken trix index file paths

This release fixes some issues where the alignments track was not scrollable and other misc issues

Downloads#

• v4.1.15

To install JBrowse 2 for the web, you can download the link above, or you can use the JBrowse CLI to automatically download the latest version. See the JBrowse web quick start for more details.

Changes since v4.1.14 (2026-03-08)#

bug#

• Fix MM tag ambiguity codes not being recognized (#5529) @c

This release fixes a bug with parsing BAM files with large headers on the v4 branch

Downloads#

• v4.1.14

To install JBrowse 2 for the web, you can download the link above, or you can use the JBrowse CLI to automatically download the latest version. See the JBrowse web quick start for more details.

Changes since v4.1.13 (2026-02-20)#

bug#

• Bump @gmod/jexl for multi-expression fix (#5494) @cmdcolin
• Fix custom m

Updates app name on mac again and tries to improve the auto-update workflow

Downloads#

• v4.1.13

To install JBrowse 2 for the web, you can download the link above, or you can use the JBrowse CLI to automatically download the latest version. See the JBrowse web quick start for more details.

Changes since v4.1.12 (2026-02-19)#

Bugfixes

Downloads#

• v4.1.4

To install JBrowse 2 for the web, you can download the link above, or you can use the JBrowse CLI to automatically download the latest version. See the JBrowse web quick start for more details.

Changes since v4.1.3 (2026-01-27)#

bug#

• Fix trackname not showing up in search results dialog (#5480) @cmdcolin
• Use summaryScoreMode for stats range calculation ([#5475](https://github.co

This release includes several important bugfixes including fixes for:

• the scrolling being extremely choppy when zoomed in since v4.0.3
• jbrowse text-index not indexing all tracks by default

Downloads#

• v4.1.3

To install JBrowse 2 for the web, you can download the link above, or you can use the JBrowse CLI to automatically download the latest version. See the JBrowse web quick start for more details.

Changes since v4.1.1 (2026-01-22)#

bug#

• Revert css based --var s

Hello all, This is a minor release but contains a couple great new features, and some important bugfixes. Please see the release notes below

Local files are preserved even after page refresh in jbrowse-web#

When users of jbrowse-web open files from their local machine, it can continue to work after page refresh. This is currently a Chrome only feature facilitated by the FileSystemFileHandle API https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle

Add advanced track configuration via the URL bar#

Previously, users could launch tracks by supplying a list of trackIds in t