The annual Standards Release (MSR)
SWIFT updates its message standards once a year, and every connected institution moves to the new version on the same November weekend — the annual Standards Release.
IN ONE LINE
An everyday analogy: imagine a paper form used by thousands of offices around the world.
It only works because every office prints the exact same version — same boxes, same order, same meaning.
If one office quietly adds a box, its forms stop matching everyone else's.
So the offices agree to change the form on one day each year, all together.
SWIFT does the same with the messages banks send each other.
Once a year it publishes an updated set of message standards — the annual Standards Release, or MSR (Message Standards Release) — and every connected institution moves to the new version on the same weekend.
Changing together is the whole point: a payment written on Monday must still be readable by a bank that upgraded over the weekend.
WHAT IT ACTUALLY IS
The Message Standards Release (MSR) is SWIFT's yearly update to the standards that define its messages.
Standards change for three broad reasons: new business needs, such as a field a market has come to require; regulation, such as data that authorities now expect a payment to carry; and technical fixes that correct or clarify rules which proved ambiguous.
Both the traditional MT message standards and the ISO 20022 base standards SWIFT maintains move on this same annual cycle, so an institution running both plans one combined change each year.
A release is versioned and dated: a specification always belongs to a named release, and "which release does this belong to" is a routine first question when two banks compare how a field should be filled in.
HOW IT WORKS
The rhythm is predictable, which is what lets thousands of institutions coordinate.
SWIFT announces the coming changes roughly twelve months ahead, finalises the detail about nine months before go-live, and activates the new release on a weekend in November — traditionally the third weekend.
Standards Release 2025 (SR2025) went live over 22-23 November 2025, the same window in which the coexistence period between MT and ISO 20022 for in-scope cross-border payment instructions came to an end.
Teams use MyStandards, SWIFT's online tool, to read each release, compare it against the previous version, and check their own systems and usage guidelines for readiness.
In practice the work is a project: read the release guide, find the fields that changed, update mapping and validation, test against the new rules, and schedule the cutover for the activation weekend.
THE WORDS
- Standards Release (MSR)
- SWIFT's yearly update to its message standards; each release is published ahead of a November go-live so every connected institution adopts it on the same date.
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SOURCES
Derived from The annual Standards Release (MSR). Every claim on this card is sourced on that page.