What's in Domino 14.5.1 FP1: Remote RAG, 49 Fixes, and a JVM Bump
The first Fix Pack for Domino 14.5.1 went live on 2026-07-16 with a quiet one-line “recommended for all customers.” It’s worth five minutes of your time, though — especially if something odd started biting you on 14.5.1, or you’ve been waiting for Domino IQ’s RAG to reach a remote model.
A Fix Pack is a cumulative set of corrections, not a new release; there’s exactly one genuinely new feature in this one, and most of the rest is putting back what 14.5.1 itself broke. Here’s what matters most to developers and admins.
TL;DR
- RAG gains a Remote mode. The LLM and embedding models can run on a remote endpoint while the vector database stays pinned to the local Domino IQ server. If you want Domino IQ without a GPU in every box, this is the step that unlocks it.
- ~49 fixes, and a good share undo 14.5.1’s own regressions. New weirdness that started after you moved to 14.5.1 is likely already fixed here.
- JVM moves to Semeru
jdk-21.0.11+10(timezone data 2026b). Anything that touches dates and time zones benefits. - Two security fixes: a repair to OIDC chained Identity Provider configuration, and a new
OIDC_LOGIN_COOKIE_UNLIMITED_DURATIONsetting to control login-cookie lifetime. - A few notes.ini toggles: restore pre-14.5.1 tabbed-table colors, and switch the embedded browser for MIME mail from IE to Edge.
The one real new feature: RAG can finally reach a remote model
Before FP1, Domino IQ’s RAG ran entirely local — inference engine, embeddings, and vector database all bolted to one Domino IQ server, and that box needed a GPU. The official FP1 notes put it plainly: RAG now supports both Local and Remote modes. The difference is that the LLM and embedding models can move to a remote endpoint, while the vector database always stays local on the Domino IQ server.
That’s the step that matters for anyone weighing Domino IQ: you no longer need a GPU in every server that wants RAG — you can concentrate a few heavy boxes remotely and point the rest at them. (As an aside, the site’s notes from OpenNTF’s RAG webinar mention that the Readers/Authors-field security model only really started working in FP1 — that’s from Brian’s account in the webinar, not something FP1’s official notes spell out.)
How the pipeline runs inside the server, and the 30-character field gotcha to work around, are covered in that webinar write-up and the earlier technical piece, so I won’t repeat them here.
More undone than added: 49 fixes and a JVM bump
The point of a Fix Pack is the fixes. The customer information panagenda compiled calls out something worth noting: a meaningful share of FP1’s fixes are undoing regressions 14.5.1 introduced itself. In other words, if you only started hitting some odd behavior after moving to 14.5.1, don’t rush to blame your own code — FP1 may already address it.
Some concrete numbers:
- ~49 fixes across Notes and Domino (HCL’s release notice says “about 46,” panagenda’s public fix list counts 49 — the numbers differ a little), plus 6 for embedded Sametime.
- The JVM moves to Semeru
jdk-21.0.11+10, timezone data 2026b. Any timezone-sensitive logic — cross-region scheduling,NotesDateTimeconversions — rides along. - Two security fixes: one repairs OIDC chained Identity Provider configuration; the other adds
OIDC_LOGIN_COOKIE_UNLIMITED_DURATIONto control whether the login cookie gets an unlimited lifetime.
A few notes.ini adjustments worth knowing
FP1 also tucks in a handful of small toggles whose pain points a developer recognizes on sight:
- Tabbed-table tab colors: 14.5.1 changed the behavior and some people didn’t like it; FP1 adds a notes.ini setting to restore the pre-14.5.1 look.
- Embedded browser for MIME mail: the default switches from IE to Edge, controlled by a notes.ini setting. The old IE component bows out of one more corner.
- The JavaScript editor got responsiveness improvements too.
Who should install it, and how
HCL’s framing is “recommended for all customers,” which for a Fix Pack is relatively firm wording — usually a sign the fixes are broad and low-risk. Supported platforms largely match 14.5.1: Windows 10/11 and Server 2019/2022/2025 (64-bit), macOS Sonoma / Sequoia / Tahoe — plus newly added SUSE Linux Enterprise 15 SP6.
Installation is the normal Fix Pack process, layered on top of an existing 14.5.1 — not a full reinstall. If you’re still on something older and haven’t reached 14.5.1 yet, the site’s Domino 2026 highlights cover the big-release changes first; get current, then take FP1 on top.
One line to sum it up: FP1 isn’t one you install for new features — RAG’s Remote mode is the sole headline, and the rest of the value is in making 14.5.1 solid. If you’re stuck on a 14.5.1 regression, this is the pack you were waiting for; treat the official FP1 notes as the authoritative fix list.