In order to make it easier to find up-to-date SRFIs, I've revised the SRFI process to allow authors to withdraw their SRFIs even after they have been marked final, as long as a suitable replacement SRFI is available. Links from the original, now-withdrawn SRFI to the new SRFI are prominently displayed, so it's easy to find the new version. The withdrawn SRFI and all its associated files are still available — just marked withdrawn.
SRFI 40, 114, and 142 have now been withdrawn this way in favor of their new versions (41, 128, and 151, respectively). Regards, SRFI Editor
