Below is a shortened link to the text and Senate summary of the new tax bill at the site of the Senate Finance Committee. This is the final version.
Something I noticed about individual tax benefits: The additional standard deduction for real estate taxes for taxpayers who do not itemize is not in the bill. This provision expired at the end of 2009 and does not appear to have been extended.
Estate taxes: Sections 301 to 303 of the bill
The law is retroactive back to 1/1/10. To use the 2010 law (no tax and limited step-up) the executor must make an election.
They simplified the estate tax for married couples by allowing the survivor to add the unused exclusion from the death of the first spouse to the survivors exclusion. E.g., if first spouse dies with a $1.5M estate, then surviving spouse has an exemption equal to $8.5M ($5M + unused $3.5M). Effectively, a married couple has a $10M exclusion.
The gift tax and estate tax are once again unified with a common schedule but only for gifts made after 2010.