Package: www.debian.org Let's examine how extremely hard it is for a user to squeeze update date of a package he is thinking of installing out of the Debian system.
First of all update dates are not part of any Package* file. So forget apt, etc. Now we must turn to the web. Case in point: "Should we install webext-ublock-origin, or get it from the Chrome web store. I know, let's see which is newer!" #933608 https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm says says "Updated July 25, 2019" That was simple. OK, let's turn to Debian. https://www.google.com/search?q=webext-ublock-origin leads to https://packages.debian.org/sid/web/webext-ublock-origin from where we must know to click on "all", https://packages.debian.org/sid/all/webext-ublock-origin/download There we see More information on webext-ublock-origin_1.19.0+dfsg-2_all.deb: Exact Size 1617728 Byte (1.5 MByte) MD5 checksum 190c7c66089925f72489624d700c34a0 SHA1 checksum Not Available SHA256 checksum bf50b4180ba0daddd720b5ce1702a315ed7743cc749ebb3cc131fe60dcc648c9 but Date is still not included. So we must copy a link, and run HEAD on it, $ HEAD http://ftp.us.debian.org/debian/pool/main/u/ublock-origin/webext-ublock-origin_1.19.0+dfsg-2_all.deb 200 OK Connection: close Date: Thu, 01 Aug 2019 01:17:03 GMT Accept-Ranges: bytes ETag: "5d22808b-18af40" Server: nginx/1.13.6 Content-Length: 1617728 Content-Type: application/octet-stream Last-Modified: Sun, 07 Jul 2019 23:30:19 GMT ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Ah, finally! But let's say we are not as smart. So we must shorten the link: http://ftp.us.debian.org/debian/pool/main/u/ublock-origin/ Then click Last Modified (twice), then look for the file we want...