In an effort to push past doubts cast by its data lake and data warehouse rivals, Databricks on Tuesday said that it is open sourcing all Delta Lake APIs as part of the Delta Lake 2.0 release. The company also announced that it will be contributing all enhancements of Delta Lake to The Linux Foundation.Databricks competitors such as Cloudera, Dremio, Google (Big Lake), Microsoft, Oracle, SAP, AWS Snowflake, HPE (Ezmeral) and Vertica have criticized the company, casting doubt whether Delta Lake was open source or proprietary, thereby taking away a share of prospective customers, analysts said.