Seasons

Rainbow Six Siege runs on quarterly content drops the publisher calls operations, numbered by year and season. There have been 43 of them, from Black Ice on 2 February 2016 to Split Fire, the season live at the time of writing. The table below gives every one with its start and end date.

All 43 Operations

Season codes, operation names and dates: the season tracker's table, read October 12, 2026. End dates align with the next operation's launch, which is also the ranked-season cut-off. The live season's end date is the tracker's projection from the game's 91-day cadence, not a publisher-confirmed date, so it is shown as open rather than guessed.

What the dates show

Two things are worth pulling out of the table. The cadence is unusually regular: most operations run 91 days, and the tracker's own average across the completed ones is about 92. The exceptions have documented causes — the longest, Velvet Shell at 120 days, ran long because the season after it was a stability-only release, and the shortest, Daybreak at 76 days, was compressed against the esports calendar.

Health (Y2S2) is the one season in the list that shipped neither a new operator nor a map. The tracker records it as a full season given over to server stability and netcode, and it still counts in the total.

Cadence figures, the longest and shortest seasons, and the note on Health: the same tracker page. The tracker's summary block and its table disagree by a few days on the Year 10 rows; the table is the one reproduced here.

Official Channels

• Rainbow Six Siege — the publisher's own site — where each season's own announcement and patch notes are published.
• Rainbow Six Siege on Steam — the store page, whose update history carries the same season announcements.

The publisher channels are linked without nofollow because we have opened them and we stand behind them. The season tracker is a third-party record and is linked with nofollow.

Update Rule

A new operation arrives roughly every three months. This page tracks the tracker's table and the publisher's own season announcements together, and the date at the top records when both were read. When the publisher publishes a full operation history of its own, the rows here are replaced with it and the third-party attribution comes off.