{"id":"6a36eccbd1c3d88f348fc393","title":"2026 06 20 Issue 291","path":"how-to/committee/release-notes/2026-06-20-issue-291","contentMarkdown":"# 20-Jun-2026 — heap-usage gauge on the memory diagnostics page [#291](https://github.com/nbarrett/ngx-ramblers/issues/291)\n\n## [build 706](https://github.com/nbarrett/ngx-ramblers/actions/runs/27881461706) — [commit dcfa2d4](https://github.com/nbarrett/ngx-ramblers/commit/dcfa2d4924de57b92dd473f3c8f15f211832c8fc)\n\n_____\n\nAdds a colour-coded progress bar showing heapUsed as a percentage of the V8\nheap size limit (green < 70%, amber 70-85%, red >= 85%) plus a status line\n(Healthy / Elevated / Critical), so the criticality of a site's memory is\nvisible at a glance rather than read from the raw table. Uses the data the\npage already fetches from /api/health/memory; the heap-versus-limit ratio is\nwhat actually drives the GC-thrash slowness, so that is what the gauge tracks.","contentHtml":"<h1>20-Jun-2026 — heap-usage gauge on the memory diagnostics page <a href=\"https://github.com/nbarrett/ngx-ramblers/issues/291\">#291</a></h1>\n<h2><a href=\"https://github.com/nbarrett/ngx-ramblers/actions/runs/27881461706\">build 706</a> — <a href=\"https://github.com/nbarrett/ngx-ramblers/commit/dcfa2d4924de57b92dd473f3c8f15f211832c8fc\">commit dcfa2d4</a></h2>\n<hr>\n<p>Adds a colour-coded progress bar showing heapUsed as a percentage of the V8\nheap size limit (green &lt; 70%, amber 70-85%, red &gt;= 85%) plus a status line\n(Healthy / Elevated / Critical), so the criticality of a site&#39;s memory is\nvisible at a glance rather than read from the raw table. Uses the data the\npage already fetches from /api/health/memory; the heap-versus-limit ratio is\nwhat actually drives the GC-thrash slowness, so that is what the gauge tracks.</p>\n"}