release-notes-12.1

HTML header: <title>dCache 12.1 Release Notes</title>
             <!--#include virtual="/template/default-head.shtml" -->
             <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
             <!-- Bootstrap -->
             <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.4.1/dist/css/bootstrap.min.css"
                integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous"/>
             <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.4.1/dist/css/bootstrap-theme.min.css"
                integrity="sha384-6pzBo3FDv/PJ8r2KRkGHifhEocL+1X2rVCTTkUfGk7/0pbek5mMa1upzvWbrUbOZ" crossorigin="anonymous"/>
             <!--link type="text/css" rel="stylesheet" href="jquery.tocify.css" /-->
             <style type="text/css">
                h5 {
                    font-size: 15px;
                    font-style: italic;
                    margin-top: 20px;
                }
                body {
                    padding-top: 20px;
                }
                @media (max-width: 767px) {
                    #toc {
                        position: relative;
                        width: 100%;
                        margin: 0px 0px 20px 0px;
                    }
                }
                @media print {
                    #toc {
                        display: none;
                    }
                }
                dl {
                    display: grid;
                    grid-template-columns: max-content 1fr;
                    row-gap: 6px;
                    column-gap: 10px;
                }
                dt {
                    font-weight: bold;
                }
                dd {
                    margin: 0;
                }
                dl dt, dl dd {
                    float: none !important;
                    width: auto !important;
                }
             </style>

<div class="container">
<div id="banner">
   <div id="bird_large">
      <img src="/images/dcache-banner.png" class="bird"></img>
   </div>
   <div id="sidebar-b">
      <span class="dcache-nav-bar">
      <a href="/index.shtml">home</a>
      |
      <a href="/news.shtml">news</a>
      |
      <a href="/manuals/index.shtml">documentation</a>
      |
      <a href="/downloads/IAgree.shtml">downloads</a>
      |
      <a href="/feedback.shtml">feedback</a>
      |
      <a href="/manuals/googlesearch.shtml">search</a>
      |
      <a href="/imprint.shtml">imprint&#160;</a>
      </span>
   </div>
</div>
<div id="content">

<div class="row">

<div class="page-header">
<h1>What's new in dCache 12.1<br/>
<small>Release notes</small></h1>
</div>

## Highlights


## Incompatibilities

- Files' last access time is enabled by default.
- The `systemd` services are now started with even more restrictions.

## Release 12.1.0

### Billing

### NFS

### Packaging

The `systemd` services are now started with even more restrictions:

```
PrivateTmp=yes
ProtectClock=yes
ProtectControlGroups=yes
ProtectHostname=yes
ProtectKernelLogs=yes
ProtectKernelModules=yes
ProtectKernelTunables=yes
ProtectProc=invisible
RemoveIPC=yes
RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX AF_NETLINK
RestrictNamespaces=yes
RestrictRealtime=yes
SystemCallArchitectures=native
UMask=0027
KeyringMode=private
LockPersonality=yes
MemoryDenyWriteExecute=no
```

### PnfsManager

Site admins often need to find files that haven't been accessed for some time. Usually such information requires a merge of namespace and
billing information. However, dCache can maintain the last access time of files, which is disabled by default. With this version,
the `atime gap` is set to 604800 (7x24x3600) seconds, which will update files' atime if last access was more than a week.

### Pool

### Xrootd


### Changelog from 12.0.0 to 12.1.0

<!-- git log 12.0..12.1 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n:   %s%n' -->






</div>
</div>
</div>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js" type="text/javascript"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"
        integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>

<script src="https://google-code-prettify.googlecode.com/svn/loader/run_prettify.js" type="text/javascript"></script>