Eth1.x comes with four distinct upgrades:
-Simulation and emulation
High level overview here: docs.ethhub.io/ethereum-roadm…
‘State rent’ is meant to curb the growth of the state of the Eth1.0 chain by requiring all accounts to pay a form of rent.
More info here: github.com/ledgerwatch/et…
eWASM would bring efficiency upgrades for Ethereum 1.0.
Find more info here: docs.google.com/document/d/1ph…
There are various solutions on how to implement this and they can be found here: gist.github.com/karalabe/60be7…
This upgrade is quite technical but you can read more about it here: docs.google.com/document/d/1pI…
These will further increase the functionality of the Ethereum 1.0 chain.
Other smart contract platforms are now competing with both Eth1.x and Eth2.0 - good luck.
(h/t to @spencernoon for inspiring me to write this thread)