The following table is a reference comparing features available for X-Author for Contracts 1.0 (Classic) and X-Author for Contracts. 

Template Management 
High Level FeaturesX-Author for Contracts 1.0 (Classic)X-Author for Contracts 
Ability to check-out a templateAvailableAvailable
Ability to check-in a templateAvailableAvailable
Ability to publish a templateAvailableAvailable
Ability to create a new templateAvailableAvailable
Ability to insert fields as a table into a templateAvailableAvailable
Ability to insert fields as a section into a templateAvailableAvailable
Ability to update fields in a template (make smart or read only)AvailableAvailable
Ability to insert clauses into a templateAvailableAvailable
Ability to insert a clause as a bookmark (predetermined position)AvailableNot Available 
Ability to mark a clauseAvailableAvailable
Ability to update a clause (make smart)AvailableAvailable
Ability to make a clause read onlyAvailableAvailable
Ability to refresh clausesAvailableAvailable
Ability to clone a templateAvailableAvailable
Ability to insert dynamic segmentAvailableAvailable
Ability to set segment (conditional and/or style)AvailableAvailable
Ability to open a template in CLMAvailableAvailable

Template versioning support

AvailableAvailable
Localization supportAvailableAvailable
Contract Negotiation
High Level FeaturesX-Author for Contracts 1.0 (Classic)X-Author for Contracts 
Ability to import an agreement document as offline document to an existing agreement
record 
AvailableAvailable
Ability to import an agreement document as offline document and create a new agreement
record
AvailableAvailable
Ability to check-out an agreement for negotiationAvailableAvailable
Ability to lock an agreement document for exclusive editingAvailableAvailable
Ability to release a lock on an agreement document which was locked for exclusive editingAvailableAvailable
Ability to Update Current Version of a documentAvailableAvailable
Ability to check-in an agreement document with redlinesAvailableAvailable
Ability to check-in an agreement document without redlinesAvailableAvailable
Ability to check-in an agreement document as final documentAvailableAvailable
Ability to check-in an agreement document as PDFAvailableAvailable
Ability to check-in an agreement document as "PDF A-1b"AvailableNot Available 
Ability to check-in an agreement document with watermarksAvailableAvailable
Ability to check-in an agreement document with header and footer with agreement number
and current date time stamp respectively
AvailableAvailable
Ability to check-in an agreement document and reconcile the documentAvailableAvailable

Lock Icon for read only clauses

Not Available Available
Ability to check-in an agreement document and version the document​AvailableAvailable
Ability to insert a clause from the playbook as smart​AvailableAvailable
Ability to insert a clause from the playbook as plain text​AvailableAvailable
Ability to Swap one clause for another from the playbook​AvailableAvailable
Ability to preview reconciliation​AvailableAvailable
Ability to highlight smart fields in a document​AvailableAvailable
Ability to reject changes to smart fields and clauses and restore previous change​AvailableAvailable
Ability to delete an existing smart field or clause (through control panel)​AvailableAvailable
Ability to delete an existing smart field or clause (without control panel)​AvailableAvailable
Ability to promote a clause to the library of clauses​AvailableAvailable
Ability to mark a content as a clause​AvailableAvailable
Ability to mark a content as a smart field​AvailableAvailable
Ability to compare two versions of an agreement document​AvailableAvailable
Ability to merge two versions of an agreement document​AvailableAvailable

Ability to show or hide smart boundaries​

AvailableAvailable
Ability to update references in a document​​AvailableNot Available 
Ability to customize check-in increment​​AvailableAvailable
Ability to validate fields​​AvailableAvailable
Ability to Open in CLM​​AvailableAvailable
Action Permission Support​​AvailableAvailable
Ability to save multiple connections / Connection Manager​​AvailableAvailable
Clause approvals (workflow support)​​Not Available Available
Parallel Review/Editing​​AvailableAvailable
IDE for 3rd Party Paper​​AvailableAvailable
Localization on agreement​​AvailableAvailable
Regenerate with redlines​​AvailableAvailable
Ability to share agreement using chatter - Chatter Integration​​AvailableNot Available
Retain Document VersionAvailableNot Available
Protect / Unprotect DocumentAvailableAvailable
Nested ClausesAvailableAvailable
Swap an alternate clauseNot AvailableAvailable
Advance Clause SearchNot Available Available