GLM-5.2 crossed the 113th milestone at P55,100 Cat-7 — “Compact Invariant Random Subgroups” (Cohen / Glockner / Goffer / Lederle, arXiv:2603.16022). Batch B4247 covers P55097–P55108; total deployed patterns announced at 55,200 across 113 milestones. Same-session batches B4242–B4247 added 72 patterns.
Path continues B4248+ (already shipping P55109–P55120). Prior desk: P55000 Historic 112th.
Standing stays 379.