One of the most important limitations when dealing with dashboards is that they don't support localization, which means you cannot translate report names, filter names, or component descriptions. Take this into account when developing a multilanguage org.
Many of the limitations have already been described in the previous sections, but some (or all) of them may be upgraded on the next Salesforce releases.
For an up-to-date and detailed list of all limits that apply to dashboards and reports, refer to Salesforce Help at https://help.salesforce.com/articleView?id=rd_dashboards_limits.htm&type=5.
For an up-to-date and detailed list of unsupported reports and dashboard differences between Classic and Lightning Experience, refer to Salesforce Help at https://help.salesforce.com/articleView?id=lex_gaps_limitations_analytics.htm&type=5.
For an up-to-date and detailed list of unsupported reports and dashboard differences between Classic and Lightning Experience, refer to Salesforce Help at https://help.salesforce.com/articleView?id=lex_gaps_limitations_analytics.htm&type=5.