I have uploaded Exim 4.80 RC4 to:
ftp://ftp.exim.org/pub/exim/exim4/test/
There was no RC3; there are some changes since RC2 worthy of note.
There is a new option "tls_dh_max_bits" which affects TLS; with OpenSSL,
it may cause a "tls_dhparams" file to be ignored. With GnuTLS, the
number of bits GnuTLS recommends be used for Diffie-Hellman generation
will be clamped to at most this value. The default "tls_dh_max_bits" is
the current maximum allowed by the NSS security library used by Mozilla
products such as Thunderbird. This resolves a GnuTLS vs NSS
interoperability problem.
Exim will now check the configured value of "tls_require_ciphers" at
startup; what was an error that would cause Exim to fail STARTTLS will
instead cause Exim to fail to start. This exposes latent
misconfiguration and makes it clearer that something is going wrong.
This also avoids the risk of crashes while talking to a remote server,
if there are library linkage problems, reducing the chances of anything
being exploitable.
The ChangeLog/NewStuff/README.UPDATING can be reviewed at:
http://git.exim.org/exim.git/blob/exim-4_80_RC4:/doc/doc-txt/ChangeLog
http://git.exim.org/exim.git/blob/exim-4_80_RC4:/doc/doc-txt/NewStuff
http://git.exim.org/exim.git/blob/exim-4_80_RC4:/src/README.UPDATING
The files are signed with the PGP key 0x3903637F, which has a uid
"Phil Pennock <pdp@???>". Please use your own discretion in
assessing what trust paths you might have to this uid.
Checksums below. Detached PGP signatures in .asc files are available
alongside the tarballs.
Please report issues in reply to this email, on exim-users.
Thank you for your testing and feedback,
-Phil Pennock, pp The Exim Maintainers.
SHA256(exim-4.80_RC4.tar.bz2)= 35a9f026bbc609a05bad99f19f11372e9cd84534aad3b4420751a026ee4a320a
SHA256(exim-4.80_RC4.tar.gz)= fbc4154a7cb6763022eb79b91d4ce1d891b2c9583bd4b40407ea536c77ea68c2
SHA256(exim-html-4.80_RC4.tar.bz2)= a5eefe4a2ae04354eecfbc4848c65918b7667e4abc84ca10ed8c46ddc5a25977
SHA256(exim-html-4.80_RC4.tar.gz)= db2c641caa389e940324ca7d07d0bdc1c62a13950878deeb589e9f16aef1869e
SHA256(exim-pdf-4.80_RC4.tar.bz2)= 4af728a14aa070d4e06fb141670f789d6b34fe9f2864a854d12ce17fa31446fa
SHA256(exim-pdf-4.80_RC4.tar.gz)= b70fa8e2842102b7e280a9ea2d0083ba2ea2ca8d6f71e771ccb77f089c9246ba
SHA256(exim-postscript-4.80_RC4.tar.bz2)= 63fbeb59a6d208ffd8f8c82bbbc8e5cf31f92331d15c05762035f536fc4fcd3c
SHA256(exim-postscript-4.80_RC4.tar.gz)= b4cf268f15f70bf3945df400c3e6fd0d5d7c401329cfb169a028bbaf2f6ce171
SHA1(exim-4.80_RC4.tar.bz2)= 50424c8272312e1bd081b3adaf7e2cc5a0a5c725
SHA1(exim-4.80_RC4.tar.gz)= 214735555fda62562ecfad11c50da75dec11ebb6
SHA1(exim-html-4.80_RC4.tar.bz2)= 1ca13c68850c0043cb1031d7a8f64481b1643bfb
SHA1(exim-html-4.80_RC4.tar.gz)= 5754ec52d6338dee941f29ca09c77820c5f9b8f0
SHA1(exim-pdf-4.80_RC4.tar.bz2)= ba77cb571603fae068b47c619f82bcb912e134e8
SHA1(exim-pdf-4.80_RC4.tar.gz)= fd3f0c618549a4ff04d3e2614da5ad7afe12246a
SHA1(exim-postscript-4.80_RC4.tar.bz2)= 7406c012416d1767b85821c0fa9c6d0f1cb42745
SHA1(exim-postscript-4.80_RC4.tar.gz)= cdccb3a6bdd3502d7b620e6d70f24748281ba3cf