[horde] What does it mean?

[Thomas Trepper]

Hi all, 

I was updating horde 5.2.19 to 5.2.20 with the following command:

pear upgrade -a -B -c horde

and I got the following log:

1) WARNING: "pear/Net_Sieve" is deprecated in favor of "horde/Horde_ManageSieve“
2) Failed to download pear/Date_Holidays within preferred state "stable", latest release is version 0.21.8, stability "alpha", use "channel://pear.php.net/Date_Holidays-0.21.8" to install
3) Unknown remote channel: phpseclib.sourceforge.net <http://phpseclib.sourceforge.net/>
4) WARNING: "pear/Console_Getopt" is deprecated in favor of "pear/Console_GetoptPlus“

What does it mean to me? Do I have to change Net_Sieve to Horde_ManageSieve and how?

Thanks a lot for helping and best wishes,

Thomas