loop/release_notes.md

# Loop Client Release Notes
This file tracks release notes for the loop client. 

### Developers: 
* When new features are added to the repo, a short description of the feature should be added under the "Next Release" heading.
* This should be done in the same PR as the change so that our release notes stay in sync!

### Release Manager: 
* All of the items under the "Next Release" heading should be included in the release notes.
* As part of the PR that bumps the client version, cut everything below the 'Next Release' heading. 
* These notes can either be pasted in a temporary doc, or you can get them from the PR diff once it is merged. 
* The notes are just a guideline as to the changes that have been made since the last release, they can be updated.
* Once the version bump PR is merged and tagged, add the release notes to the tag on GitHub.

## Next release

#### NewFeatures

* When making `loop out`, users can request exact amount to be delivered
  to destination address. The user provides options `--dest_amt` and `--change_addr`
  for that. In this case exactly `--dest_amt` is delivered to `--addr` and the change
  amount goes to `--change_addr`. The following must be true: `amt >= max_miner_fee + dest_amt`.
  This mode of operation is useful to pay to merchants expecting an exact amount for a purchase.

#### Breaking Changes

#### Bug Fixes