When we run our invoicing logic, we print the billing events for debugging (see DefaultInternalBillingApi):

DefaultBillingEvent{type=CREATE, effectiveDate=2017-05-11T13:44:31.000Z, planPhaseName=sports-monthly-evergreen, subscriptionId=e2e74b3f-b78d-46c7-a7ff-081ff888521f, totalOrdering=1}

We should add the catalog version (catalogEffectiveDate) as well, as this would be helpfu

Bacause of following proguard config

-assumenosideeffects class org.solovyev.android.checkout.Check {
	static *;
}

I get following warnings:

Note: the configuration specifies that none of the methods of class 'org.solovyev.android.checkout.Check' have any side effects
Note: the configuration specifies that none of the methods of class 'org.solovyev.android.checkout.Check' have any

Something based on https://docs.djangoproject.com/en/3.0/howto/upgrade-version/ would be a good idea.

• Review the change log for breaking changes
• Upgrade one feature release at a time (eg 2.2.x to 2.3.x)
• Test for deprecation warnings before/after each feature release
• Suggestion to run ./manage.py djstripe_sync_models after feature release in order to populate new fields - link to h

@voltrue2 I think we should add some documentation for the validate method. I'm also happy to submit a PR for this. I'm receiving the following errors sometimes and it is unclear without investigating the code whether this means the request failed or if the receipt is invalid. In my particular case, both of these failures were for valid receipts.

{ Error: read ECONNRESET
    at TLSWrap.

doctests will help us catch any stale examples in the documentation, in case the examples break due to changes in code.

The following need to be resolved for doctests to work:

1. The outputs also have to be written down in the documentation

• Typical response objects are huge (will take up a lot of space).
• Responses are unique and can't be tested against.

2. Our examples invoke calls

Was following through the installation steps on the Docs http://docs.boxbilling.com/en/latest/reference/installation.html but when i go to the Download Page https://www.boxbilling.com/download and try to download, i get an error of the kind below, yet i registered and got a free licence.
![failedtoDownload](https://user-images.githubusercontent.com/36065782/80685543-38199580-8a7c-1

We want to backup the database to amazon s3.

I saw this Project and this is very useful ! but the problem is that there is no guide anywhere which contains detailed instructions of How to install this on a localhost or on XAMPP !
that would be fantastic if someone can help me regarding this ! i see potential in this project.... please make it worth of your hard-work guys ! thanks !

Currently, the GL search results table includes only the functional currency amounts ("amount_bc" column / "base currency"). However, to make the multi currency support shine, the currency and transaction currency amount columns should be added (optionally with an "fx rate" column?)

Similar to #798 (Activities) or #545 (Tags) we need to build generic feature Notes & Comments.

For each type of record (e.g. Contacts, Organizations, Employees, Invoices, etc), we should be able to add some notes which will be displayed in like timeline style (i.e. it's a list of notes, most recent notes at the top, oldest at bottom of the list). Note: it is possible that some entities already