下载
https://mirrors.tuna.tsinghua.edu.cn/CTAN/
http://mirrors.sjtug.sjtu.edu.cn/ctan/
http://mirror.lzu.edu.cn/CTAN/
ftp://mirrors.ustc.edu.cn/CTAN/
http://mirrors.ustc.edu.cn/CTAN/
Plan for TeX Live 2019:
22feb: candidate/final sources committed, builds begin.
1mar: tlnet (and TL'18) frozen, tlpretest starts, CTAN updates continue there.
22mar: code freeze for final build, major bug fixes only.
5apr: final updates from CTAN, final doc tweaks.
12apr: deliver TL image for TeX Collection packaging/testing.
19apr: deliver TeX Collection DVD image for manufacturing.
30apr: public release (also of MacTeX).
June?: delivery of DVDs to members.