Adding support for LEFT JOINs and IS NULL conditions to Drupal's EntityFieldQuery has been asked for in d.o. issue queues and discussed over and over again. Although in Drupal 8 EntityFieldQuery has been rewritten, and now supports exists() and notExists() conditions, implementing it in Drupal 7 is still slightly hack-ish. Doing it in dynamic, parametrisable way however seems to be something new entirely.

Recently in Development

If you happen to have Commerce Stock module enabled, while at the same time you have removed Commerce Line Item: Delete button field from your Shopping cart form view, you most probably faced (or are still facing) some PHP warning and notices when using any of the shopping cart buttons.
Akeneo
Akeneo is an open source Product Information Management (PIM) system designed for retailers looking for efficient answers to their multichannel needs. Platform.sh is a groundbreaking hosting and development tool for web applications. It extends a branch-merge workflow to infrastructure so that every branch can be tested as if it were in production, and scales for the largest sites.
The Tower of Babel By Pieter Brueghel
Step-by-step guide to translating a Commerce Kickstart 2-based store, including multilingual products and search.
Don't Drink Poison by Carissa Rose Stevens
Ever got an invitation to one of those "fancy" Microsoft Office Live Meetings, only to end up scratching your head how the heck could you access it from your Mac? Especially if you were running Mavericks?
Mexican Marketplace by Anne Gifford
This tutorial will guide you through all the steps required to replicate the Commerce Marketplace demo site on your own server, and then explain how its behaviour differs depending on various configuration settings.

Recent commits

commerce_marketplacead6abc72 May
Issue #2477649: Empty orders should be excluded from the order group before checkout
commerce_marketplacec11926d1 May
Added new parameter to commerce_marketplace_order_calculate_total() to provide default currency code
commerce_marketplace_paypal9a38d8f28 Apr
Issue GH#1: Limited to 9 receivers
commerce_marketplace387a9e627 Apr
Issue #2478417: Save (store) and add another don't save Payment method settings
commerce_marketplace_paypal8b934d925 Apr
Existing IPN loading
commerce_marketplace35c0fa920 Apr
Fixed group max order_id loading for anonymous users

Maciej on drupal.org