czekster/markov is a repository collecting materials for the book 'Markov Chains for programmers', which deals with Markov Chains. The most recent commit, e829f183, was made on October 14, 2026 at 14:02 UTC, and the commit message is 'Update README.md'. The only changed file is README.md, with 1 line added and 1 line removed.
The README states that the book was written by Ricardo M. Czekster and published by Self Publishers Worldwide (other publications of the lazy panda collection). The 2nd edition was released in October 2026; it fixed the errors and typos that had appeared in the 1st edition (April 2022), and added content on uniformised and embedded DTMC, that is, discrete-time Markov chains (DTMC, discrete-time Markov chain). It also says that passages assisted by an LLM are marked in gray.
The one deleted line was a link pointing to the 1st edition PDF. The 2nd edition PDF link and the cover image remain as they were, and the fact that this is a repository collecting textbook materials rather than code has not changed either. In other words, this commit did not add any functionality but was a documentation cleanup. However, from a two-line README change alone, it cannot be known how the 1st edition file itself was handled, and the repository's overall file composition and scale are not presented in the given material. The whole of this commit is the difference that the 1st edition link has disappeared from a document that had introduced both the 1st and 2nd editions.