Cx Dev Log — 2026-06-26

#cx #programming

No code landed today. No commits from the developer across any branch for the second day in a row. The only repo activity was automated: yesterday's daily log commit and a site blog post. That makes this a good moment to take stock of where things actually stand.

Static strings are done, dynamic strings are not

The static string subset (D2.3a through D2.3d) shipped to submain and has been stable for about 48 hours now. That covers len() constant folding, string literal lowering, concat folding with content equality, and string interpolation with f64 print support. Everything that can avoid runtime allocation is handled.

The next real frontier is R6: dynamic strings. This means runtime allocation, lifetime management, and a new string representation. It is a qualitative step up from the static work. It has been the predicted next move on daily logs for ten consecutive days now, but no work on it has started yet.

The submain-to-main gap keeps growing

Submain is 22 commits ahead of main. The last merge (PR #295) was 21 days ago. The test matrix on submain is clean at 286 pass / 0 fail, with parity numbers at 222 pass / 64 skip / 0 parity fail. Main sits at 230 pass / 0 fail out of 230.

There is no technical blocker to merging. The gap is just growing through inertia.

The daily-log PR backlog

There are at least 10 open daily-log PRs (June 16 through 25, PRs #308 through #317), and none have been merged. The last daily-log PR that actually landed on main was from late May. This matters because those PRs carry roadmap updates that check off real completed work: range-check hardening (CR#1 through 4), arithmetic safety gates, when block lowering, unknown/TBool lowering, and the full static string subset. Main's ROADMAP.md still reads "Last updated: 2026-05-18," which is over five weeks stale.

The roadmap on main does not reflect the current state of the project. Anyone looking at main alone would have no idea that the static string subset is done.

What is actually next

The same three items that have been predicted for the last ten days remain the natural continuation:

Dynamic strings (R6) is the clearest technical frontier. It requires allocation infrastructure that does not exist yet.
Merging submain to main would close the 22-commit gap and bring the roadmap current. Zero regressions stand in the way.
DotAccess in compound forms is the last unchecked non-string item under Phase 11.

Two rest days in a row might mean the developer is away or working on something outside this repo. When work does resume, any of these three would move the project forward.

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