# Release notes v0.8

**URL:** <https://discuss.dgraph.io/t/release-notes-v0-8/1616>\
**Category:** Users\
**Created:** [July 14, 2017, 1:28am UTC](https://discuss.dgraph.io/t/release-notes-v0-8/1616 "2017-07-14T01:28:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pawan](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/pawan/32/1946_2.png) [@pawan](https://discuss.dgraph.io/u/pawan)\
**Post date:** [July 14, 2017, 1:28am UTC](https://discuss.dgraph.io/t/release-notes-v0-8/1616/1 "2017-07-14T01:28:02Z")

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Here is the diff since v0.7.7

[https://github.com/dgraph-io/dgraph/compare/release/v0.7.7...release/v0.8?expand=1](https://github.com/dgraph-io/dgraph/compare/release/v0.7.7...release/v0.8?expand=1)

# Features

## Server

- Suppport [`has` function](https://docs.dgraph.io/master/query-language/#has).
- Support for [variables in mutation blocks](https://docs.dgraph.io/master/query-language/#variables-in-mutations).
- Support for k shortest paths.

- [\*] @michaelcompton @ashwin95r Could you please add an example in the docs?

- Support [deletion of predicate](https://docs.dgraph.io/master/query-language/#delete).
- Support for `uid_in` function.

- [\*] @michaelcompton please add docs.

- Add a directive to remove reflexive edges from results.

- [\*] @michaelcompton docs please.

- Allow to use Dgraph as a library.
- Ability to [monitor](https://docs.dgraph.io/master/deploy/#monitoring) server metrics.

- [\*] @janardhan we need docs for how to use Promotheus and Grafana.

## Client

- Go client now supports an `Unmarshal` function which allows unmarshalling the protocol buffer response to a custom struct.
  - [\*] @michaelcompton please add a link to docs or an example for this.

- Add support for storing and retrieving raw bytes.
  - [\*] @michaelcompton Could we add this to other examples too if not already.

- Cleaner and more intuitive API for doing mutations.

# Improvements

- Move away from RocksDB and get rid of CGO. Start using [badger](https://github.com/dgraph-io/badger).
- Assign uids sequentially.
- Allow retrieving other children with `@groupby`.
- Allow aliases for math expressions.
- Support filtering using multiple tokens with `eq`.
  - [\*] @michaelcompton could you please check if we can docs for this?

- Better language lists semantics. Issue #1010
- Add a `uid` function which can be used for filtering uids at any level.

- [\*] @michaelcompton please add this in functions section with an example of how to use it at levels other than root.

- Allow adding [`@count` indexes](https://docs.dgraph.io/master/query-language/#inequality) which allow for faster count comparison queries at the root.
- Optimisations in how we store Posting List data structure. Store uids separately.
- Allow specifying a max depth argument for the shortest path.
- Support for [month, day, hour] indexes for datetime datatype.

- [\*] @michaelcompton docs, please.

- Get rid of `lhmap` and add an LRU Cache. We don’t do Stop the World anymore.

# Changes (from v0.7.7)

- `date` type is no longer supported as a schema type in Dgraph. You should use [`dateTime`](https://docs.dgraph.io/master/query-language/#schema-types) instead.
- Change of syntax for querying by id.

```auto
# Before
{
  me(id: [0x1, 0x2]) {
    ...
  }
}

# Now
{
  me(func: uid(0x1, 0x2)) {
    ...
  }
}

```

- Dgraph doesn’t fingerprint `xids` anymore. They are now treated similarly to other edges. So now if you had an `xid` and you wanted to query by it you would use.

```auto
# You need to have an index on xid for calling `eq` function.
{
  me(func: eq(xid, "alice")) {
    ....
  } 
}

```

- `/admin/backup` is now `/admin/export`. It outputs blank nodes which can now be used to load data into a fresh instance.
- There is a separate port for `http` (default 8080) and `grpc` (default 9080) now.

# Bugfixes

- Remove concurrent filtering data race. Issue #1020
- Fix panic issues related to tracing. Wait for all goroutines to finish before retuning error.
- Fix crash caused by nil list. #1035

TODO(pawan) - Change links for docs to point to `v0.8` and add all bugfixes.

---

<div class="post-metadata">

**Author:** ![yupengfei](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/yupengfei/32/1095_2.png) [@yupengfei](https://discuss.dgraph.io/u/yupengfei)\
**Post date:** [July 14, 2017, 3:53am UTC](https://discuss.dgraph.io/t/release-notes-v0-8/1616/2 "2017-07-14T03:53:47Z")

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🎆 Thank you for you great work.

---

<div class="post-metadata">

**Author:** ![pawan](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/pawan/32/1946_2.png) [@pawan](https://discuss.dgraph.io/u/pawan)\
**Post date:** [November 28, 2017, 1:00am UTC](https://discuss.dgraph.io/t/release-notes-v0-8/1616/3 "2017-11-28T01:00:18Z")

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Closed on November 28, 2017, 1:00am UTC

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