<commit_before>## 0.5.0 (Unreleased)

IMPROVEMENTS:
  * core: Introduce node SecretID which can be used to minimize the available
    surface area of RPCs to malicious Nomad Clients [GH-1597] 
  * agent: Add DataDog telemetry sync [GH-1816]
  * cli: `nomad alloc-status` shows allocation creation time [GH-1623]
  * cli: `nomad node-status` shows node metadata in verbose mode [GH-1841]
  * client: Failed RPCs are retried on all servers [GH-1735]
  * client: Enforce shared allocation directory disk usage [GH-1580]
  * client: Introduce a `secrets/` directory to tasks where sensitive data can
    be written [GH-1681]
  * driver: Export `NOMAD_JOB_NAME` environment variable [GH-1804]
  * driver/docker: Support Docker volumes [GH-1767]
  * driver/docker: Allow Docker logging to be configured [GH-1767]
  * driver/rkt: Support rkt volumes (rkt >= 1.0.0 required) [GH-1812]

BUG FIXES:
  * agent: Handle the SIGPIPE signal preventing panics on journalctl restarts
    [GH-1802]
  * cli: `alloc-status` does not query for allocation statistics if node is down
    [GH-1844]
  * client: Prevent race when persisting state file [GH-1682]
  * client: Artifact download failures will be retried before failing tasks
    [GH-1558]
  * client: Fix a crash related to stats publishing when driver hasn't started
    yet [GH-1723]
  * client: Fix a memory leak in the executor that caused failed allocations<commit_msg>Added tls, gossip encryption, LXC support to Changelog<commit_after>## 0.5.0 (Unreleased)

IMPROVEMENTS:
  * core: Introduce node SecretID which can be used to minimize the available
    surface area of RPCs to malicious Nomad Clients [GH-1597] 
  * agent: Add DataDog telemetry sync [GH-1816]
  * api: Support TLS for encrypting Raft, RPC and HTTP APIs [GH-1853]
  * cli: `nomad alloc-status` shows allocation creation time [GH-1623]
  * cli: `nomad node-status` shows node metadata in verbose mode [GH-1841]
  * client: Failed RPCs are retried on all servers [GH-1735]
  * client: Enforce shared allocation directory disk usage [GH-1580]
  * client: Introduce a `secrets/` directory to tasks where sensitive data can
    be written [GH-1681]
  * driver: Export `NOMAD_JOB_NAME` environment variable [GH-1804]
  * driver/docker: Support Docker volumes [GH-1767]
  * driver/docker: Allow Docker logging to be configured [GH-1767]
  * driver/lxc: Support for LXC containers [GH-1699]
  * driver/rkt: Support rkt volumes (rkt >= 1.0.0 required) [GH-1812]
  * server: Support for gossip encryption [GH-1791]

BUG FIXES:
  * agent: Handle the SIGPIPE signal preventing panics on journalctl restarts
    [GH-1802]
  * cli: `alloc-status` does not query for allocation statistics if node is down
    [GH-1844]
  * client: Prevent race when persisting state file [GH-1682]
  * client: Artifact download failures will be retried before failing tasks
    [GH-1558]
  * client: Fix a crash related to stats publishing when driver hasn't started
    yet [GH-1723]
  * client: Fix a memory leak in the executor that caused failed allocations
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