Every claim below was made in this piece, quoted word for word and numbered in the order the piece makes them, so you can read it there rather than take our word for it. The sentence above each quote is our reading of the claim, not their wording. Each quote was checked against a stored copy of the page at build time; where the two differ, the quote is the fact.
Their wordsAll releases are "stable" and backwards compatible for userspace programs to all previous kernel releases.
Their wordsNo kernel release should ever break any existing user's code or workflow.
Their wordsIt is NOT safe to do a simple "if this version number is bigger than the previous one, then all fixes for it will be in the next release." You have to treat each kernel "branch" as a unique tree, and not compare them against each other in order to be able to properly track changes over time.
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The other pieces are the ones whose claims are worded most like this one's. That measures language, not agreement: they may argue the opposite.