This is a modified Apache License:

You are permitted to use, compile, execute, the code in this repository,
as long as this driver's protocol output is not sent over the SSL/TLS 
protocol. You are prohibited from connecting this driver to Compose.IO 
or to any other SSL/TLS endpoint without a commercial license.

To remove this limitation and permit usage over SSL/TLS, a commercial
license must be purchased. The commercial license permitting use over
SSL/TLS and Compose.IO is available from Bit Armory Inc and can
be purchased here:

       https://www.bitarmory.com/payments/rethinkdb

Copyright 2010-2012 RethinkDB

Copyright (c) .NET Foundation. All rights reserved.

Copyright (c) Daniel Cannon.

Copyright (c) 2015 Bitly.

Copyright 2010-2014 MongoDB Inc.

Copyright (c) 2016 Bit Armory Inc.

Copyright (c) 2016 Brian Chavez 
* http://github.com/bchavez
* http://bchavez.bitarmory.com

Copyright (c) 2017 Daniel J. Summers
* http://github.com/danieljsummers

Licensed under the Apache License, Version 2.0 (the "License"); you may not use
these files except in compliance with the License. You may obtain a copy of the
License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed
under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied. See the License for the
specific language governing permissions and limitations under the License.